H. MAJEED, Abdulrahman; I. MEFTEN, Mushreq. Centralizers of Prime and Semiprime Rings. Journal of Al-Qadisiyah for Computer Science and Mathematics, [S. l.], v. 1, n. 1, p. 58–66, 2017. Disponível em: https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/167. Acesso em: 10 nov. 2024.