PHOLHIAMHAN, I. The Development of Effective Administration Model for Small-sized Secondary Schools under the Secondary Education Service Area Offices in the North-eastern Region of Thailand. Dhammathas Academic Journal, [S. l.], v. 20, n. 1, p. 75–86, 2020. Disponível em: https://so06.tci-thaijo.org/index.php/dhammathas/article/view/159212. Acesso em: 13 apr. 2025.