D. MAHMOOD, R. On Weakly Regular Rings and SSF-rings. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 3, n. 1, p. 55–59, 2006. DOI: 10.33899/csmj.2006.164035 . Disponível em: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/37090. Acesso em: 18 dec. 2025.