Mohammed, Ashraf, and اشرف. “The Concept of Authority According to Caliph Al-Mutawakkil (247A.H.-861A.D.)”. Journal of Education for the Humanities 3, no. 9 (June 24, 2025): 587–608. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/jeh/article/view/5220.