Haji Hamzah N. The Government of Khurasan Under Harun Al-Rashid (A.H. 170-193 / A.D. 786-808). JUD [Internet]. 2003 Jun. 30 [cited 2024 Jul. 4];17:163-84. Available from: http://mjs.um.edu.my/index.php/JUD/article/view/4082