Faraj. A. Abdunabi, Ahmed shletiet, and Najah. A. Bosaif. “Roughness in Anti Semigroup”.
Journal of Pure & Applied Sciences
21, no. 4 (October 3, 2022): 251–253. Accessed April 10, 2025. https://sebhau.edu.ly/journal/jopas/article/view/2194.