(3GdSjGSI GdGSdGejI ai YgO GdNdaGA GdQTOjf (B/s - (3GdSYjOi, YHOGdeJYGd,s 1894- (Beirut: Dar al-Fikr al-'Arabi, 1961)
Keywords: Caliphs; Islamic Empire -- History