Boonda, P. ., A. . Preedeekul, and P. . Markmee. “Effect of an Operational Competency Development Model of Public Health Personnel in the Virtual Service Provider Office (VSPO) in Thailand”. Connexion: Journal of Humanities and Social Sciences, vol. 6, no. 2, Dec. 2017, pp. 160-88, https://so05.tci-thaijo.org/index.php/MFUconnexion/article/view/241281.