Yari, Siavash. “Khwārazmshāhids Policy Against Caliph Al-Nāsser Strategy to Regain Political Power of the Caliphate and Its Consequences in Irān”. Journal of Islamic Thought and Civilization 12, no. 1 (June 7, 2022): 176-185. Accessed December 9, 2022. https://journals.umt.edu.pk/index.php/JITC/article/view/2364.