Ezzat, Faeza Mohammed, و Khalida Salam Ibrahim, trans. “The Ministry System in the Abbasid Era Was Influenced by the Ministry System in the Sassanid state(861-661A.D 247-41A.H)”. Twejer Journal 2, no. 4 (دسامبر 21, 2019): 1035–1062. دسترسی اکتبر 12, 2026. https://journals.soran.edu.iq/index.php/Twejer/article/view/129.