Rashed Yassein, Hassan, and Mazen Omran Karim. “On Smarandache M-Semigroup”. Journal of Al-Qadisiyah for Computer Science and Mathematics 3, no. 1 (September 17, 2017): 71–76. Accessed April 3, 2025. https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/241.