Appiah, Isaac Kwadwo. University of Fort Hare; 2021. The classification of fuzzy subgroups of some finite non-cyclic abelian p- groups of rank 3, with emphasis on the number of distinct fuzzy subgroups.

Appiah, Isaac Kwadwo. University of Fort Hare; 2016. The classsification of fuzzy subgroups of some finite Abelian p-groups of rank 3.