HUR MAJEED, Taghreed; HUSSAIN ALI, Deyaa. Certain Types of Groupoids. Journal of Al-Qadisiyah for Computer Science and Mathematics, [S. l.], v. 11, n. 2, p. math 10–19, 2019. DOI: 10.29304/jqcm.2019.11.2.543. Disponível em: https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/543. Acesso em: 15 nov. 2024.