al-Khalifah : tawliyat wa'izluhu, isham fi al-nazariyah al-dusturiyah al-Islamiyah dirasah muqaranah bi al-nizam al-dusturiyah al-gharbiyah - Dabbus, Salah al-Din (al-Iskandariyah : Muassasah Thaqafah al-Jami'iyah)
Thesis (Ph.D.) - University of al-Iskandariyah.
Keywords: University of al-Iskandariyah -- Dissertations; Dissertations, Academic -- Egypt; Caliphate; Constitutional law (Islamic law).; Comparative government