Keophuvong, Khampachak, Sasithorn Chaowarat, and Narongrit Sopa. “Performance Competency Development of Personnel of the Planning and Investment Department in Champasak Province, Lao People’s Democratic Republic”. Chophayom Journal 30, no. 3 (December 28, 2019): 31–42. Accessed April 29, 2024. https://so01.tci-thaijo.org/index.php/ejChophayom/article/view/232810.