(3GdNdGaI GdGSdGejI hbVjI GdMce HeG CfRd Gddg (B/s - (3fYeGf, UGOb TGjas (al-Qahirah : Dar al-Salam, 2004)
Keywords: Caliphate -- History; Islam and state -- History; Imamate -- History; Islamic Empire -- Politics and government