D. Mahmood, R., رائدة, A. S. M., and اکرم. “On SNF-Rings , I”. AL-Rafidain Journal of Computer Sciences and Mathematics, vol. 11, no. 1, June 2025, pp. 13-18, https://rjps.uomosul.edu.iq/index.php/csmj/article/view/19397.