Lungtan, Phra Boonchoti, and Phramaha Attaphon Narissaro. “Public Service Development of Modern Government”. Journal of Thammawat 2, no. 1 (November 9, 2022): 31–37. accessed April 7, 2025. https://so09.tci-thaijo.org/index.php/tmwj/article/view/636.