HAZBOUN, Grace Nasri. The Role of Training Courses in Improving the Professional Performance of Principals in Private Schools in Bethlehem Governorate from their point of view. Journal of Educational and Psychological Sciences, New Mexico, United States, v. 8, n. 4, p. 1–15, 2024. DOI: 10.26389/AJSRP.Q011123. Disponível em: https://www.ajsrp.ojsexpert.com/index.php/jeps/article/view/7470. Acesso em: 20 dec. 2025.