Abbas Yas, kifah Ibrahim. “The Fatimid Minister Yaqoub Bin Kilis 380AH / 990AD Historical Study”. Journal of Tikrit University for Humanities 28, no. 7 (July 9, 2021): 331–345. Accessed July 29, 2026. https://jtuh.org/index.php/jtuh/article/view/389.