Muḥammad Yūsuf Iṭfayyish (al-Quṭb). Ḥayātuhu wa-Dawruhu al-Thaqāfī - Saʿd Allāh, Abū ‘l-Qāsim (Aʿmāl al-Multaqà al-ʿIlmi al-awwal ḥawla Turāth Salṭanat ʿUmān al-Shaqīqa Qadīman wa-Ḥadīthan, 2002)
Keywords: Atfiyyash; Muhammad b. Yusuf (1821-1914); Biographies – Mzab – 19e siècle