Thammakun, T., Somphobcharoen, M., Kengganpanich, T., & Kengganpanich, M. (2019). An Application of the Protection Motivation Theory on Primary Tooth Decay Prevention Through Preschool Children Parents at Mueang District, Nakhonratchasima Province*. Thai Journal of Health Education, 34(3), 9–24. retrieved from https://he01.tci-thaijo.org/index.php/muhed/article/view/173952