Dr. Haba Abdelmalek. Psychological Harmony among Pre-school Students (A Field Study on a Sample of Pre-school Section Children in El-Oued Municipality) . PEGEGOG [Internet]. 2025 Dec. 5 [cited 2026 Jan. 20];15(4):2965-74. Available from: https://www.pegegog.net/index.php/pegegog/article/view/4485