D. Mahmood, Raida, رائدة, Mohammed Th. Youns, and محمد. “On N - Regular Rings”. AL-Rafidain Journal of Computer Sciences and Mathematics 8, no. 2 (June 25, 2025): 53–59. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/csmj/article/view/36642.