RelBib: Yūsuf AL-'IŠŠ, al-Dawlat al-umawiyya wa l-ahdāt allati sabaqathā wa-mahhadat lahā ibtidā'an min fitnati 'Utmān, 359 pp., Damas (Éditions de l'Université) 1965 https://relbib.de/Record/1561934178/Description