أولاد ضياف ر. The geopolitical situation in the Islamic Orient during the crusader penetration during the 10th century Ah/16 AD . ihy [Internet]. 2021 Oct. 24 [cited 2026 Nov. 15];21(2):593-608. Available from: https://journals.univ-batna.dz/index.php/elihyaa/article/view/578