Khalifah zuhud : Umar bin Abdul Aziz - Al-Makky, Muhammad Nuruddin Marbu Al-Banjari; Muhammad Subki Abd Rahman (Pasir Mas, Kelantan: Maahad Tahfiz Darul Quran Wal Qiraat Berhad, 2002)
Keywords: 'Umar, -- Caliph, -- d. 720; Caliphs; Islamic Empire -- -- History -- -- 661-750