Jandaphun, D., J. Chatsahga, and S. Singmatr. “Improving the Quality of Life of Teachers and Educational Personnel with the Philosophy of Sufficiency Economy: Improving the Quality of Life of Teachers and Educational Personnel with the Philosophy of Sufficiency Economy”. RATANABUTH JOURNAL, vol. 5, no. 3, Dec. 2023, pp. 640-51, https://so07.tci-thaijo.org/index.php/rtnb/article/view/3808.