H. Shuker, Nazar, زينة, Zeina M Hamady, and نزار. “Strongly 2T - Clean Rings”. AL-Rafidain Journal of Computer Sciences and Mathematics 18, no. 2 (June 25, 2025): 101–104. Accessed August 5, 2025. https://rjps.uomosul.edu.iq/index.php/csmj/article/view/19707.