Citation
Ḥasanayn, Aḥmad Aḥmad al-Sayyid. al-Takayyuf al-Ijtimāʿī bi-l-Mujtamaʿāt al-Rīfiyya al-Mustaḥdatha: Dirāsa Ijtimāʿiyya Anthrūbūlūjiyya ʿalā Shabāb al-Kharījīn bi-Manṭaqat Gharb al-Nūbāriyya. Cairo: Maʿhad al-Buḥūth wa-l-Dirāsāt al-ʿArabiyya, 1991.