MUSLIM, Kori Lilie; AFDAYENI, Melia. UMAR BIN ABDUL AZIS: ZAMAN KEEMASAN ISLAM MASA DINASTI UMAYYAH. Islam Transformatif : Journal of Islamic Studies, [S. l.], v. 3, n. 1, p. 30–37, 2019. DOI: 10.30983/it.v3i1.797. Disponível em: https://ejournal.uinbukittinggi.ac.id/index.php/islamt/article/view/797. Acesso em: 17 mar. 2026.