MASOOD AHMED RIAZ ,SHAKIR ADAM ,KHALID MEHMOOD. PIOUS CALIPHATE VS UMAYYAD KINGSHIP: A COMPARATIVE STUDY OF BASIC RELIGIOUS STRUCTURE . Pakistan Journal of International Affairs, [S. l.], v. 4, n. 4, 2021. DOI: 10.52337/pjia.v4i3.256. Disponível em: http://pjia.com.pk/index.php/pjia/article/view/256. Acesso em: 9 may. 2026.