“The Effectiveness of the Developed principal’s Courses in Babylon Governorate from the Point of View of School Principals”. Al-Adab Journal 1, no. 137 (June 15, 2021): 349–366. Accessed May 6, 2024. https://aladabj.uobaghdad.edu.iq/index.php/aladabjournal/article/view/1084.