H. MAJEED, Abdul Rahman; F. ADHAB, Enaam. On Derivations of Period 2 On Near–Rings. Journal of Al-Qadisiyah for Computer Science and Mathematics, [S. l.], v. 7, n. 2, p. 66–71, 2017. Disponível em: https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/65. Acesso em: 15 nov. 2024.