Training requirements for general secondary school managers in the light of management performance development requirements "A field study in damascus city schools". مجلة للعلوم التربوية والنفسية [Internet]. 2022 Oct. 4 [cited 2026 Jun. 18];38(3). Available from: https://journal.damascusuniversity.edu.sy/index.php/eduj/article/view/6474