UNRUEAN, P. The Implementation of Internal Quality Assurance System of the Schools under The Nong Bua Lam Phu Primary Educational Service Area Office 1. Journal of Humanities and Social Sciences, Rajapruk University, [S. l.], v. 10, n. 1, p. 465–480, 2024. Disponível em: https://so03.tci-thaijo.org/index.php/rpu/article/view/277507. Acesso em: 16 sep. 2026.