Nathan P. Gibson, Vanessa Birkhahn and Hanna Friedel, (eds.), "Yūsuf ibn Aḥmad ibn Ḥasdāy — أبو جعفر يوسف بن أحمد بن حسداي " in Communities of Knowledge: Interreligious Networks of Scholars in Ibn Abi Usaybiʿa’s History of the Physicians last modified June 23, 2021, https://usaybia.net/person/2335 Yūsuf ibn Aḥmad ibn Ḥasdāy Abū Jaʿfar Yūsuf ibn Aḥmad ibn Ḥasdāy أبو جعفر يوسف بن أحمد بن حسداي يوسف بن أحمد بن حسداي Yūsuf ibn Aḥmad ibn Ḥasdāy, Abū Jaʿfar, Andalusian physician https://usaybia.net/person/2335 https://dx.doi.org/10.1163/1573-3912_ei3_COM_32138 physician Jewish, Muslim A literary history of medicine: the 'Uyūn al-anbā' fī ṭabaqāt al-aṭibbā' of Ibn Abī Uṣaybi'ah 13.51 13.59.4 no. 17