Nūba, ʿUthmān

Referred to in

Flügel, John. al-Insān wa-l-Akhlāq wa-l-Mujtamaʿ. Cairo: Dār al-Fikr al-ʿArabī , 1966.

Lippman, Walter. Falsafat al-Ḥayāt al-ʿĀmma. Cairo: Maktabat al-Nahḍa al-ʿArabiyya, 1960.