SANGNOI, N.; KHATTIYASUWAN, S. Internal Supervision of Basic Educational Institutions under the Secondary Educational Service Area Office Surin. Mahachulagajasara Journal, [S. l.], v. 17, n. 3, p. 120–143, 2026. Disponível em: https://so06.tci-thaijo.org/index.php/gajasara/article/view/290496. Acesso em: 1 oct. 2026.