Dr. Hatim Muhammad Mahamid, Dr. Younis Abu Al-Haija. “THE IJAZA: EVALUATION CRITERIA AND QUALIFICATION FOR TEACHING IN ISLAMIC EDUCATION IN MEDIEVAL ERAS”. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 18, no. 7, Apr. 2021, pp. 35-54, https://archives.palarch.nl/index.php/jae/article/view/7592.