RUANGTAM, W. GUIDELINES FOR SKILLS DEVELOPMENT OF SCHOOL ADMINISTRATORS IN THE 21st CENTURY UNDER LOEI PRIMARY EDUCATIONAL SERVICE AREA OFFICE 1. Journal of Srilanchang Review, [S. l.], v. 9, n. 2, p. 57–70, 2023. Disponível em: https://so06.tci-thaijo.org/index.php/jslc/article/view/270065. Acesso em: 1 oct. 2026.