TOONCHAIYAPHUM, M. A Proposed Policy for Social Innovation of Small - Sized School Under The Secondary Education Service Area Office 25. Journal of Innovation and Learning Sciences, [S. l.], v. 13, n. 3-4, p. 29–38, 2019. Disponível em: https://so02.tci-thaijo.org/index.php/EDGKKUJ/article/view/242952. Acesso em: 9 dec. 2025.