Ciocîltan, Virgil. “The Arabs and the Islam until the 13th Century. II. The Islamic Expansion”. The Annals of "Dunarea de Jos" University of Galati. Fascicle XIX, History 2 (December 4, 2003): 50-65. Accessed July 22, 2024. https://gup.ugal.ro/ugaljournals/index.php/history/article/view/956.