Muslim, K.L. and Afdayeni, M. 2019. UMAR BIN ABDUL AZIS: ZAMAN KEEMASAN ISLAM MASA DINASTI UMAYYAH. Islam Transformatif : Journal of Islamic Studies. 3, 1 (Nov. 2019), 30–37. DOI:https://doi.org/10.30983/it.v3i1.797.