Ṣabra, ʿAbd al-Ḥamīd

Referred to in

Popper, Karl. Buʾs al-Īdyūlūjyā: Naqd Mabdaʾ al-Anmāṭ fī al-Taṭawwur al-Tarīkhī. Beirut: Dār al-Sāqī, 1992.

Popper, Karl. ʿUqm al-Madhhab al-Tārīkhī: Dirāsa fī Manāhij al-ʿUlūm. Alexandria: Manshaʾat al-Maʿārif, 1959.