Yusuf, A. O., and A. M. Ibrahim. “ON ISOMORPHIC SOFT LATTICES AND SOFT SUBLATTICES”. FUDMA JOURNAL OF SCIENCES 1, no. 1 (March 12, 2023): 28 - 34. Accessed April 4, 2025. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1216.