อัมพาผล สุธีรา, and จันทร์รุ่งเรือง ปฏิพัทธ์. “The Satisfactions of the Trainees for Service of Good Government Official Course A Case Study: Ministry of Natural Resources and Environment”. RMUTP Research Journal Humanities and Social Sciences 1, no. 1 (July 18, 2018): 1–11. Accessed April 29, 2024. https://so05.tci-thaijo.org/index.php/rmutphuso/article/view/135087.