Mhanna, Ali Habib. “The Reality of Professional Development for Public School Teachers in Lebanon and Its Obstacles from the Perspective of a Sample of Principals: Teacher Training in the Beirut Governorate As a Model”. Journal of Educational and Psychological Sciences, vol. 9, no. 7 (ملحق), June 2025, pp. 23-40, https://doi.org/10.26389/AJSRP.E080125.