Citation
Ḥusayn, Maḥmūd ʿAbd al-Ḥamīd. al-Muḥaddidāt al-Ḥaḍariyya wa-l-Dīmūjrāfiyya li-Darajat al-Taghayyur al-Ijtimāʿī fī al-Rīf. Minya: Dār Ḥarrāʾ li-l-Nashr wa-l-Tawzīʿ al-Jāmiʿī, 1981.
Ḥusayn, Maḥmūd ʿAbd al-Ḥamīd. al-Muḥaddidāt al-Ḥaḍariyya wa-l-Dīmūjrāfiyya li-Darajat al-Taghayyur al-Ijtimāʿī fī al-Rīf. Minya: Dār Ḥarrāʾ li-l-Nashr wa-l-Tawzīʿ al-Jāmiʿī, 1981.