عمر س., “Omar, Spahetch. ‘Political Transformations in the Era of Muʿāwiyyah Ibn Abī Sufyān: A Study of the Nature of Relations between the Political and Scholarly Leaderships,’ Year 5, Issue 20 (Spring 1421 AH/ 2000 CE), Pp. 61-107”., CITJ, vol. 5, no. 20, pp. 107–61, Apr. 2000.