An assessment of density estimation methods for forest ungulates
- Authors: Ellis, Amanda Morgan
- Date: 2004
- Subjects: Wildlife management -- South Africa -- Eastern Cape Animal populations -- Estimates Wildlife conservation -- South Africa -- Eastern Cape Game farms -- South Africa -- Eastern Cape Ungulates -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5829 , http://hdl.handle.net/10962/d1007830
- Description: The development of conservation and management programs for an animal population relies on a knowledge of the number of individuals in an area. In order to achieve reliable estimates, precise and accurate techniques for estimating population densities are needed. This study compared the use of direct and indirect methods of estimating kudu (Trage/aphus strepsiceras), bush buck (Trage/aphus scriptus), common duiker (Sy/vicapra grimmia), and blue duiker (Philantamba manticala) densities on Shamwari Game Reserve in the Eastern Cape Province, South Africa. These species prefer habitats of dense forest and bush for concealment and are therefore not easily counted in open areas. Herein direct observation counts were compared to indirect sampling via pellet group counts (clearance plots, line transects, variable-width transects, and strip transects). Clearance plots were examined every 2 weeks, while all other methods were conducted seasonally, from August 2002 until August 2003. The strip transect method provided the lowest density estimates (animals per hal ranging from 0.001 for bushbuck to 0.025 for common duiker, while direct observations yielded the highest estimates, ranging from 0.804 for bush buck to 4.692 for kudu. Also, a validation of methods was performed against a known population of kudu during which the DISTANCE method yielded the most accurate results, with an estimated density of 0.261 that was within the actual density of 0.246 to 0.282. In addition, the DISTANCE method was compared to helicopter counts ofkudu and its estimates were found to be approximately 2.6 times greater than the helicopter count results. When the assessment of the methods was made, the cost, manpower and effort requirements, coefficient of variation, and performance against a known population for each method were taken into consideration. Overall, the DISTANCE method performed the best with low cost, minimal manpower and effort requirements, and low coefficient of variation. On Shamwari Game Reserve, the DISTANCE method estimated 0.300 kudu, 0.108 bushbuck, 0.387 common duiker, and 0.028 blue duiker per ha, which, when extrapolated to the total number of animals present within subtropical thicket habitat, estimated 1973 kudu, 710 bush buck, 2545 common duiker, and 184 blue duiker.
- Full Text:
- Date Issued: 2004
- Authors: Ellis, Amanda Morgan
- Date: 2004
- Subjects: Wildlife management -- South Africa -- Eastern Cape Animal populations -- Estimates Wildlife conservation -- South Africa -- Eastern Cape Game farms -- South Africa -- Eastern Cape Ungulates -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5829 , http://hdl.handle.net/10962/d1007830
- Description: The development of conservation and management programs for an animal population relies on a knowledge of the number of individuals in an area. In order to achieve reliable estimates, precise and accurate techniques for estimating population densities are needed. This study compared the use of direct and indirect methods of estimating kudu (Trage/aphus strepsiceras), bush buck (Trage/aphus scriptus), common duiker (Sy/vicapra grimmia), and blue duiker (Philantamba manticala) densities on Shamwari Game Reserve in the Eastern Cape Province, South Africa. These species prefer habitats of dense forest and bush for concealment and are therefore not easily counted in open areas. Herein direct observation counts were compared to indirect sampling via pellet group counts (clearance plots, line transects, variable-width transects, and strip transects). Clearance plots were examined every 2 weeks, while all other methods were conducted seasonally, from August 2002 until August 2003. The strip transect method provided the lowest density estimates (animals per hal ranging from 0.001 for bushbuck to 0.025 for common duiker, while direct observations yielded the highest estimates, ranging from 0.804 for bush buck to 4.692 for kudu. Also, a validation of methods was performed against a known population of kudu during which the DISTANCE method yielded the most accurate results, with an estimated density of 0.261 that was within the actual density of 0.246 to 0.282. In addition, the DISTANCE method was compared to helicopter counts ofkudu and its estimates were found to be approximately 2.6 times greater than the helicopter count results. When the assessment of the methods was made, the cost, manpower and effort requirements, coefficient of variation, and performance against a known population for each method were taken into consideration. Overall, the DISTANCE method performed the best with low cost, minimal manpower and effort requirements, and low coefficient of variation. On Shamwari Game Reserve, the DISTANCE method estimated 0.300 kudu, 0.108 bushbuck, 0.387 common duiker, and 0.028 blue duiker per ha, which, when extrapolated to the total number of animals present within subtropical thicket habitat, estimated 1973 kudu, 710 bush buck, 2545 common duiker, and 184 blue duiker.
- Full Text:
- Date Issued: 2004
Dynamic compensation for performance characteristic differences of wind generator coupled pumps
- Swanepoel, Pieter Frederick Renier
- Authors: Swanepoel, Pieter Frederick Renier
- Date: 2000
- Subjects: Wind pumps
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10806 , http://hdl.handle.net/10948/25 , Wind pumps
- Description: The lack of services such as electricity in the rural areas of South Africa has given rise to the use of pump water and the windmills. The ones in use currently are maintenance intensive. There is a corrosive element in water and this sometimes requires plastic or other non-corrosive materials to be used for pump components and pipes. Solar panels are expensive and have low efficiencies. Alternative energy systems such as diesel engine driven- mono pumps or -turbines or windmills are costly, which means that the overall efficiency must be maximized to reduce these costs.
- Full Text:
- Date Issued: 2000
- Authors: Swanepoel, Pieter Frederick Renier
- Date: 2000
- Subjects: Wind pumps
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10806 , http://hdl.handle.net/10948/25 , Wind pumps
- Description: The lack of services such as electricity in the rural areas of South Africa has given rise to the use of pump water and the windmills. The ones in use currently are maintenance intensive. There is a corrosive element in water and this sometimes requires plastic or other non-corrosive materials to be used for pump components and pipes. Solar panels are expensive and have low efficiencies. Alternative energy systems such as diesel engine driven- mono pumps or -turbines or windmills are costly, which means that the overall efficiency must be maximized to reduce these costs.
- Full Text:
- Date Issued: 2000
The impact of exchange rate volatility on manufacturing production : a case study of South Africa
- Authors: Dube, Ziphozethu
- Date: 20
- Subjects: Foreign exchange rates -- South Africa Manufacturing industries -- South Africa Industrial productivity
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/8294 , vital:32193
- Description: The study examined the impact of exchange rate volatility on manufacturing production for the period of 1994 - 2015 in South Africa. The study evaluated the literature on exchange rate volatility and manufacturing production which was conducted and resulted into specification of an empirical model. The Autoregressive Distributive Lag (ARDL) was employed towards deducing the relationship of exchange rate volatility and manufacturing production. This study made use of monthly data to examine the relationship of exchange rate volatility and manufacturing production. However, the data frequency selected, ensured an adequate number of observations and results revealed that exchange rate volatility has a negative relationship with manufacturing production in the long run, nonetheless considering South Africa as an export economy the results were consistent with Ayinde (2014) who found that this relationship is seen to exist. A positive relationship was noted within the short run period. The unstable business environment in South Africa has been worsened by the political climate and unstable policies that has a ripple effect. Due to this aspect the study recommended the need for stabilizer policies for monetary, fiscal, trade and exchange rate management. The government should properly manage the exchange rate and design suitable policies that will reduce the deviation of the exchange rate thereby encourage production. Exchange rate stability is viewed to be key for export-oriented manufacturing sectors in a macroeconomic environment. The South African economy has felt such heaviness of political unrest and polices that do not result in stability. It would be key for policymakers to be vigilant and implement such measures to get the economy ticking in the right direction.
- Full Text:
- Date Issued: 20
- Authors: Dube, Ziphozethu
- Date: 20
- Subjects: Foreign exchange rates -- South Africa Manufacturing industries -- South Africa Industrial productivity
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/8294 , vital:32193
- Description: The study examined the impact of exchange rate volatility on manufacturing production for the period of 1994 - 2015 in South Africa. The study evaluated the literature on exchange rate volatility and manufacturing production which was conducted and resulted into specification of an empirical model. The Autoregressive Distributive Lag (ARDL) was employed towards deducing the relationship of exchange rate volatility and manufacturing production. This study made use of monthly data to examine the relationship of exchange rate volatility and manufacturing production. However, the data frequency selected, ensured an adequate number of observations and results revealed that exchange rate volatility has a negative relationship with manufacturing production in the long run, nonetheless considering South Africa as an export economy the results were consistent with Ayinde (2014) who found that this relationship is seen to exist. A positive relationship was noted within the short run period. The unstable business environment in South Africa has been worsened by the political climate and unstable policies that has a ripple effect. Due to this aspect the study recommended the need for stabilizer policies for monetary, fiscal, trade and exchange rate management. The government should properly manage the exchange rate and design suitable policies that will reduce the deviation of the exchange rate thereby encourage production. Exchange rate stability is viewed to be key for export-oriented manufacturing sectors in a macroeconomic environment. The South African economy has felt such heaviness of political unrest and polices that do not result in stability. It would be key for policymakers to be vigilant and implement such measures to get the economy ticking in the right direction.
- Full Text:
- Date Issued: 20
An exploration of environmental understanding among primary health care providers in an Eastern Cape community
- Authors: Hepburn, Mary Patricia
- Date: 1999
- Subjects: Medical care -- South Africa -- Eastern Cape Medical care -- Rural areas Environmental education -- South Africa -- Eastern Cape Community health services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1533 , http://hdl.handle.net/10962/d1003415
- Description: This study explores environmental understanding among the health care practitioners serving a rural community in the Eastern Cape Province in South Africa. During the preliminary phases of the research, the decision was made to adopt a participatory approach to the inquiry as far as was possible. Semi-structured interviews, participant observation and focus group discussions were the techniques chosen to focus the participants' thinking about: the meaning of environment, environmental issues and problems which impact on health, and, environmental education in practice. Comparisons between the recently transformed health education idea proposed by the World Health Organization (WHO), known as "health promotion", and a popular environmental education model are made. It is argued that many of the obstacles to effective health education described by the participants in the study can be overcome by using environmental educationlhealth promotion approaches. The findings show that the health practitioners studied relate to a wide range of environmental issues with varying levels of engagement. They are influenced by changing values, their feelings about indigenous knowledge, and their notions about how people should respond to the environment. An urgent need for more and better communication among the different levels of health practitioners is identified. Finally, it is recommended that health care practitioners be supported with opportunities for professional development which can lead to a confident, seIfreflective approach to health education.
- Full Text:
- Date Issued: 1999
- Authors: Hepburn, Mary Patricia
- Date: 1999
- Subjects: Medical care -- South Africa -- Eastern Cape Medical care -- Rural areas Environmental education -- South Africa -- Eastern Cape Community health services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1533 , http://hdl.handle.net/10962/d1003415
- Description: This study explores environmental understanding among the health care practitioners serving a rural community in the Eastern Cape Province in South Africa. During the preliminary phases of the research, the decision was made to adopt a participatory approach to the inquiry as far as was possible. Semi-structured interviews, participant observation and focus group discussions were the techniques chosen to focus the participants' thinking about: the meaning of environment, environmental issues and problems which impact on health, and, environmental education in practice. Comparisons between the recently transformed health education idea proposed by the World Health Organization (WHO), known as "health promotion", and a popular environmental education model are made. It is argued that many of the obstacles to effective health education described by the participants in the study can be overcome by using environmental educationlhealth promotion approaches. The findings show that the health practitioners studied relate to a wide range of environmental issues with varying levels of engagement. They are influenced by changing values, their feelings about indigenous knowledge, and their notions about how people should respond to the environment. An urgent need for more and better communication among the different levels of health practitioners is identified. Finally, it is recommended that health care practitioners be supported with opportunities for professional development which can lead to a confident, seIfreflective approach to health education.
- Full Text:
- Date Issued: 1999
Graphicacy as a form of communication in the primary school
- Authors: Wilmot, Pamela Dianne
- Date: 1998
- Subjects: School children -- South Africa Visual communication Perception in children Visual literacy Pictures
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1551 , http://hdl.handle.net/10962/d1003433
- Description: Children of today inhabit a multi-dimensional world, and in order to communicate effectively in it, they need the ability to utilise four forms of communication namely, oracy, literacy, numeracy and graphicacy. Communicating in graphic form requires an ability to both encode and decode spatial information using symbols, which requires the utilisation and application of spatial perceptual skills and concepts. The acquisition of graphic skills has been influenced by traditional developmental perspectives; increasingly the assumptions underpinning these have been challenged by more recent international research findings. The draft Curriculum Framework for General and Further Education and Training (1996: 18) identifies graphic literacy as one of the critical outcomes of the new South African curriculum. For graphic literacy to be an achievable outcome of the new curriculum, we need to investigate the skills and concepts underpinning this form of communication. The goal of this research is to investigate graphicacy as a form of communication in South African primary schools. However, given the scope of a research project of this nature, it was decided that rather than dealing with graphicacy per se, pictures as the most frequent and concrete type of graphic communication encountered by young learners would be focused on. In seeking to investigate pictures, the first stage of the study is concerned with diagnosing and illuminating children's graphic skill development through identifying: what skills they use; how they use and apply these when communicating through and interpreting symbols; and the difficulties they experience when, firstly, encoding spatial information through a series of practical and drawing tasks; and secondly, when reading and interpreting pictures. The second stage of the study investigates the extent to which children's early childhood experiences may or may not have impeded or enhanced the acquisition of skills necessary for understanding and communicating about space. The research findings, evaluated according to existing and emerging theoretical perspectives on graphicacy, will help to illuminate the current situation regarding the graphic literacy of South African primary school children. The study may contribute to wider international debates about graphicacy as a form of communication and the development of graphic literacy, from a South African perspective.
- Full Text:
- Date Issued: 1998
- Authors: Wilmot, Pamela Dianne
- Date: 1998
- Subjects: School children -- South Africa Visual communication Perception in children Visual literacy Pictures
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1551 , http://hdl.handle.net/10962/d1003433
- Description: Children of today inhabit a multi-dimensional world, and in order to communicate effectively in it, they need the ability to utilise four forms of communication namely, oracy, literacy, numeracy and graphicacy. Communicating in graphic form requires an ability to both encode and decode spatial information using symbols, which requires the utilisation and application of spatial perceptual skills and concepts. The acquisition of graphic skills has been influenced by traditional developmental perspectives; increasingly the assumptions underpinning these have been challenged by more recent international research findings. The draft Curriculum Framework for General and Further Education and Training (1996: 18) identifies graphic literacy as one of the critical outcomes of the new South African curriculum. For graphic literacy to be an achievable outcome of the new curriculum, we need to investigate the skills and concepts underpinning this form of communication. The goal of this research is to investigate graphicacy as a form of communication in South African primary schools. However, given the scope of a research project of this nature, it was decided that rather than dealing with graphicacy per se, pictures as the most frequent and concrete type of graphic communication encountered by young learners would be focused on. In seeking to investigate pictures, the first stage of the study is concerned with diagnosing and illuminating children's graphic skill development through identifying: what skills they use; how they use and apply these when communicating through and interpreting symbols; and the difficulties they experience when, firstly, encoding spatial information through a series of practical and drawing tasks; and secondly, when reading and interpreting pictures. The second stage of the study investigates the extent to which children's early childhood experiences may or may not have impeded or enhanced the acquisition of skills necessary for understanding and communicating about space. The research findings, evaluated according to existing and emerging theoretical perspectives on graphicacy, will help to illuminate the current situation regarding the graphic literacy of South African primary school children. The study may contribute to wider international debates about graphicacy as a form of communication and the development of graphic literacy, from a South African perspective.
- Full Text:
- Date Issued: 1998
An evaluation of the use of computers in a South African primary school
- Authors: Mostert, Orla
- Date: 1992
- Subjects: Education, Elementary -- South Africa -- Computer-assisted instruction Computer-assisted instruction -- South Africa Educational technology -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1528 , http://hdl.handle.net/10962/d1003410
- Description: The introduction of the computer into the educational arena is unique as pressure for its inclusion has come not from educationalists, but from public demand based on the conviction that exposure to computers is an essential ingredient of modern education. This has resulted in computers being added to school curricula before there has been careful research into its educational implications, making huge demands on teachers involved in the innovation. South African primary schools involved in computer education have followed international trends in their adoption of computers, initially perceiving computer education as a separate subject added on to the present curriculum. However, changing trends in computer use internationally are now beginning to reflect educators' changing perceptions of the nature of primary education, and educators are calling for the use of computers to be integrated into the curriculum rather than being seen as an area of study in themselves. This investigation attempts to outline general trends and perceptions of computer use in a South African primary school. Despite a high level of computer usage at the observed school, the computer was seen by teachers, in the main, as an extra subject, and has not yet led to any significant changes in teaching styles and methods. The research suggests that two main issues need to be resolved before computer education in primary schools reflects the present paradigm shift towards learner-centered educational practices. Firstly, there is a need to rethink the delivery of the curriculum towards one which promotes a greater degree of problem solving and decision making on the part of the learner. Secondly, it would appear that teachers need to be made more aware of this trend.
- Full Text:
- Date Issued: 1992
- Authors: Mostert, Orla
- Date: 1992
- Subjects: Education, Elementary -- South Africa -- Computer-assisted instruction Computer-assisted instruction -- South Africa Educational technology -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1528 , http://hdl.handle.net/10962/d1003410
- Description: The introduction of the computer into the educational arena is unique as pressure for its inclusion has come not from educationalists, but from public demand based on the conviction that exposure to computers is an essential ingredient of modern education. This has resulted in computers being added to school curricula before there has been careful research into its educational implications, making huge demands on teachers involved in the innovation. South African primary schools involved in computer education have followed international trends in their adoption of computers, initially perceiving computer education as a separate subject added on to the present curriculum. However, changing trends in computer use internationally are now beginning to reflect educators' changing perceptions of the nature of primary education, and educators are calling for the use of computers to be integrated into the curriculum rather than being seen as an area of study in themselves. This investigation attempts to outline general trends and perceptions of computer use in a South African primary school. Despite a high level of computer usage at the observed school, the computer was seen by teachers, in the main, as an extra subject, and has not yet led to any significant changes in teaching styles and methods. The research suggests that two main issues need to be resolved before computer education in primary schools reflects the present paradigm shift towards learner-centered educational practices. Firstly, there is a need to rethink the delivery of the curriculum towards one which promotes a greater degree of problem solving and decision making on the part of the learner. Secondly, it would appear that teachers need to be made more aware of this trend.
- Full Text:
- Date Issued: 1992
The contribution of meditative experiences to personal growth : a case study
- Authors: Knight, Zelda Gillian
- Date: 1991
- Subjects: Meditation Self-actualization (Psychology)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1466 , http://hdl.handle.net/10962/d1003347
- Description: A three month meditation programme based on Joseph Goldstein's (1976) instructions and discourses given at a Vipassana meditation retreat was implemented among four 17 year old white English-speaking school girls at a private non-racial co-educational high school in South Africa. The meditation experiences of all four subjects were noted, hut only one subject's meditative experiences were documented and used as a case study to explore their use as a tool for personal growth within the framework of ego-psychology and transpersonal psychology. It is concluded that the subject, who meditated on a daily basis, experienced personal growth primarily from the ego-psychology perspective and, it is interesting to note, less so from the transpersonal perspective. Three bypotheses have been put forward for this. Firstly, the actual length of the meditation programme may have been too short, and secondly, the daily meditation sessions too brief to facilitate a process of personal growth and development from within the trans personal psychology framework. Thirdly, the subject was an adolescent school girl and thus may not have been developmentally ready in terms of reaching a level of cognitive, emotional, social and spiritual maturity necessary to experience identification to the transpersonal self.
- Full Text:
- Date Issued: 1991
- Authors: Knight, Zelda Gillian
- Date: 1991
- Subjects: Meditation Self-actualization (Psychology)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1466 , http://hdl.handle.net/10962/d1003347
- Description: A three month meditation programme based on Joseph Goldstein's (1976) instructions and discourses given at a Vipassana meditation retreat was implemented among four 17 year old white English-speaking school girls at a private non-racial co-educational high school in South Africa. The meditation experiences of all four subjects were noted, hut only one subject's meditative experiences were documented and used as a case study to explore their use as a tool for personal growth within the framework of ego-psychology and transpersonal psychology. It is concluded that the subject, who meditated on a daily basis, experienced personal growth primarily from the ego-psychology perspective and, it is interesting to note, less so from the transpersonal perspective. Three bypotheses have been put forward for this. Firstly, the actual length of the meditation programme may have been too short, and secondly, the daily meditation sessions too brief to facilitate a process of personal growth and development from within the trans personal psychology framework. Thirdly, the subject was an adolescent school girl and thus may not have been developmentally ready in terms of reaching a level of cognitive, emotional, social and spiritual maturity necessary to experience identification to the transpersonal self.
- Full Text:
- Date Issued: 1991
A study of kitsch in South African suburban society
- Authors: Page, Lindsay Ann
- Date: 1984
- Subjects: Kitsch -- South Africa Decorative arts -- South Africa Popular culture -- South Africa
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2458 , http://hdl.handle.net/10962/d1007673
- Description: Consider the possibility of the remnants of our present day society being excavated and studied in centuries to come. Imagine the craftsmanship, the art, artifacts and architecture that will then be compared to those of the past centuries. Our entire culture will be labelled by the endless array of rubbish that has become an integral part of our lives. The increasing prevalence of kitsch in the society goes almost unnoticed where it should be causing concern. Few people are aware of its existence, or the permanent aesthetic scars induced by this prevalence. How has this cult of sheer awfulness come about and why has it become prevalent? It is impossible to pursue all the avenues of kitsch - so vast is it but it is the purpose of this study to try and answer some of the questions, in order to make people more aware of what has crept into our society, to help them become more discriminating, and not merely to level criticism at the perpetrators of kitsch.
- Full Text:
- Date Issued: 1984
- Authors: Page, Lindsay Ann
- Date: 1984
- Subjects: Kitsch -- South Africa Decorative arts -- South Africa Popular culture -- South Africa
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2458 , http://hdl.handle.net/10962/d1007673
- Description: Consider the possibility of the remnants of our present day society being excavated and studied in centuries to come. Imagine the craftsmanship, the art, artifacts and architecture that will then be compared to those of the past centuries. Our entire culture will be labelled by the endless array of rubbish that has become an integral part of our lives. The increasing prevalence of kitsch in the society goes almost unnoticed where it should be causing concern. Few people are aware of its existence, or the permanent aesthetic scars induced by this prevalence. How has this cult of sheer awfulness come about and why has it become prevalent? It is impossible to pursue all the avenues of kitsch - so vast is it but it is the purpose of this study to try and answer some of the questions, in order to make people more aware of what has crept into our society, to help them become more discriminating, and not merely to level criticism at the perpetrators of kitsch.
- Full Text:
- Date Issued: 1984
The determination of God's action in history with special reference to Herbert Butterfield
- Authors: Fourie, Stephen
- Date: 1981
- Subjects: Butterfield, Herbert, 1900-1979 Christianity -- Philosophy -- History God -- History of doctrines
- Language: English
- Type: Thesis , Bachelor , BDiv
- Identifier: vital:1242 , http://hdl.handle.net/10962/d1009438
- Full Text:
- Date Issued: 1981
- Authors: Fourie, Stephen
- Date: 1981
- Subjects: Butterfield, Herbert, 1900-1979 Christianity -- Philosophy -- History God -- History of doctrines
- Language: English
- Type: Thesis , Bachelor , BDiv
- Identifier: vital:1242 , http://hdl.handle.net/10962/d1009438
- Full Text:
- Date Issued: 1981