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, Soran, Kurdistan regional Government,Iraq, v. 2, n. 4, p. 1035–1062, 2019. DOI: 10.31918/. Disponível em: https://journals.soran.edu.iq/index.php/Twejer/article/view/129.. Acesso em: 14 jan. 2026.