Riḍwān al-Sayyed, al-Umma wa’l-ğamā'a wa’l-sulta. Beyrouth, Dār iqra’, 1984. Ridwān al-Sayyed, Mafāhīm al-ğamā'āt fī ’l-islām. Beyrouth, Dār al-tanwīr, 1984

Jadaane Fehmi. Riḍwān al-Sayyed, al-Umma wa’l-ğamā'a wa’l-sulta. Beyrouth, Dār iqra’, 1984. Ridwān al-Sayyed, Mafāhīm al-ğamā'āt fī ’l-islām. Beyrouth, Dār al-tanwīr, 1984. In: Bulletin critique des annales islamologiques, n°4, 1987. pp. 51-53