NIRUTTINANONT , phongphich; CHUCHEEP, S. .; HANKLA, C. . The Need to Improve the Competency of School Administrators Under The Educational Opportunity Expansion Schools Under The Saraburi Primary Educational Service Area Office. Journal of Faculty of Humanities and Social Sciences Thepsatri Rajabhat University , [S. l.], v. 13, n. 2, p. 139–154, 2022. Disponível em: https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/254512. Acesso em: 6 dec. 2025.