ONSONGCHUN, N.; KHAWNMAN, P. . Guidelines for developing internal quality assurance operations according to basic educational standards for quality of learners of educational institutions Under the Office of Sukhothai Primary Educational Service Area 2 in Si Satchanalai District. Education journal Faculty of Education, Nakhon Sawan Rajabhat University , Nakhon Sawan,Thailand, v. 7, n. 3, p. 223–237, 2024. DOI: 10.2774.EDU2024.3.267877. Disponível em: https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/267877. Acesso em: 3 apr. 2025.