PHUMKERD, N.; TAWEE, S.; SUNTAWAN, T. Sufficiency School Administration Model for a Learning Center Basing on the Philosophical Principles of Sufficiency Economy in Opportunity Extension Schools. Dhammathas Academic Journal, [S. l.], v. 21, n. 1, p. 103–118, 2021. Disponível em: https://so06.tci-thaijo.org/index.php/dhammathas/article/view/168682. Acesso em: 15 sep. 2026.