“An Application of Le-Semigroup Techniques to Semigroups, Γ-Semigroups and to Hypersemigroups”.
European Journal of Pure and Applied Mathematics 12, no. 1 (January 31, 2019): 208–225. Accessed November 21, 2024.
https://www.ejpam.com/index.php/ejpam/article/view/3383.