Phol-in พิสิษฐ์. “Personal Competency Assessment in the Performance at Central Hospital Medical Office, Bangkok”. Journal of Management Science Nakhon Pathom Rajabhat University 1, no. 1 (September 14, 2018): 94–110. Accessed January 29, 2022. https://so03.tci-thaijo.org/index.php/JMSNPRU/article/view/145688.