Riwayat hidup Khalifah'Umar bin'Abdul'Aziz dan Imam al-Ghazali - Ummu Saif (Johor Bahru : Perniagaan Jahabersa, 1999)
Keywords: 'Umar ibn'Abd al-'Aziz, -- Caliph, -- d. 720; al-Ghazzali, -- 1058-1111