Sugun, P., & Pookongchai, K. (2021). The Development of Core Competency of the Personnel of the Subdistrict Adminstrative Orgnization in Porncharoen District Bung kan Province. Journal of Roi Et Rajabhat University, 15(1), 28-38. Retrieved from https://so03.tci-thaijo.org/index.php/reru/article/view/236311