Mkna, S. (2020). The Khazari Umayyad War Conflict in the Caucasus (40-132 AH/661-750 AD ): الصراع الحربي الأموي الخزري في بلاد القوقاز (40- 132هـ/ 661- 750م). Tishreen University Journal- Arts and Humanities Sciences Series, 42(2). Retrieved from https://journal.tishreen.edu.sy/index.php/humlitr/article/view/9531