Saeed, Nazdar, and نازدار. “Political Variables and Their Impact on the Fall of the Umayyad Caliphate (41-132 A.H. / 661-749 A.D.)”. Journal of Education for the Humanities 3 (June 24, 2025): 677–698. Accessed August 5, 2025. https://ojs.uomosul.edu.iq/index.php/jeh/article/view/5689.