Athamina 1994. Athamina, Khalil (July 1994). "The Appointment and Dismissal of Khālid b. al-Walīd from the Supreme Command: A Study of the Political Strategy of the Early Muslim Caliphs in Syria". Arabica. Brill. 41 (2): 253–272. doi:10.1163/157005894X00191. JSTOR4057449.
jstor.org
Athamina 1994. Athamina, Khalil (July 1994). "The Appointment and Dismissal of Khālid b. al-Walīd from the Supreme Command: A Study of the Political Strategy of the Early Muslim Caliphs in Syria". Arabica. Brill. 41 (2): 253–272. doi:10.1163/157005894X00191. JSTOR4057449.