Citation
al-Khashshāb, Muṣṭafā. Naẓariyyat al-Maʿrifa al-Insāniyya ʿInd al-Madrasa al-Faransiyya li-ʿIlm al-Ijtimāʿ. Cairo: Maṭbaʿat Lajnat al-Bayān al-ʿArabī, 1952.
al-Khashshāb, Muṣṭafā. Naẓariyyat al-Maʿrifa al-Insāniyya ʿInd al-Madrasa al-Faransiyya li-ʿIlm al-Ijtimāʿ. Cairo: Maṭbaʿat Lajnat al-Bayān al-ʿArabī, 1952.