PHOSENG , P.; THUENCHANG, W.; THOSAGAI, T. THE DEVELOPMENT OF SCHOOL ADMINISTRATORS’ SKILLS IN THE 21ST-CENTURY BASED ON THE THREEFOLD TRAINING IN SCHOOLS UNDER THE PHETCHABUN PRIMARY EDUCATIONAL SERVICE AREA OFFICE 3. Journal of Educational Review Faculty of Education in MCU, [S. l.], v. 13, n. 2, p. 184–195, 2026. Disponível em: https://so02.tci-thaijo.org/index.php/EDMCU/article/view/289115. Acesso em: 16 sep. 2026.