Hassan Al-Shamiry, S. (2018). Conventions, treaties and covenants of the peace in the Umayyad period and its impact on the stability of the state. Mustansiriyah Journal Of Arts (MuJA), (49), 1-23. Retrieved from http://amm.uomustansiriyah.edu.iq/index.php/mustansiriyah/article/view/544