SINGSAI, J.; KHUANA, K. Guidelines for Development of the Annual Operation Plan in a School under Kampheangphet Primary Educational Service Area Office 1 . Interdisciplinary Academic and Research Journal , Maha Sara Kham, TH., v. 6, n. 2, p. e286663 , 2026. DOI: 10.60027/iarj.2026.e286663. Disponível em: https://so03.tci-thaijo.org/index.php/IARJ/article/view/286663. Acesso em: 16 sep. 2026.