al-Tasawwuf al-Islami ansaruhu wa khusumuhu - Hajjaj, Muhammad Fawqi Muhammad Hasan (Qaherah : Kulliyyah Usul al-Din, al-Azhar University, 1974)
Tesis (Ph.D.) - Universiti al-Azhar, 1974
Keywords: al-Azhar University -- Dissertations; Dissertations, Academic -- Egypt; Sufism