Raksapol, Maneerat, Prayote Songklin, and Subunn Ieamvijarn. 2017. “The Core Competency of Personnel under the Ministry of Public Health: A Case Study of the Public Health Technical Officer in the Health Service Network 8”. Chophayom Journal 28 (3):129-36. https://so01.tci-thaijo.org/index.php/ejChophayom/article/view/107136.