al-ʻUmlah wa-tārīkhuhā : dirāsah taḥlīlīyah ʻan nashʼat al-ʻumlah wa-taṭawwurihā wa-hiwāyat jamʻihā - Shāfiʿī, Ḥasan Maḥmūd, (al-Hayʼah al-Miṣrīyah al-ʻĀmmah lil-Kitāb, 1980)