JANTUB, S.; CHA-UMPONG, T.; PAKDEEJIT, Y. Factors Affecting Internal Quality Assurance Operation in Schools under the Secondary Educational Service Area Office Nakhonsawan. Education journal Faculty of Education, Nakhon Sawan Rajabhat University , Nakhon Sawan,Thailand, v. 6, n. 2, p. 194–207, 2023. DOI: 10.2774.EDU2023.2.260651. Disponível em: https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/260651. Acesso em: 2 oct. 2026.