Prathumthong, S. (2018) “A Model of Academic Administration Based on Philosophy of Sufficiency Economy for Primary Schools under the Office of Loei Primary Educational Service Area”, Chophayom Journal, 29(3), pp. 115–132. available at: https://so01.tci-thaijo.org/index.php/ejChophayom/article/view/153764 (accessed: 13 September 2026).