Somnoi, P., and P. Banchonhattakit. “Effects of Behavior Modification Program for Oral Health Care by Applying Protection Motivation Theory and Social Support in Child Development Center, Nakhon Ratchasima Province”. Thai Journal of Health Education, vol. 40, no. 2, July 2018, pp. 88-102, https://he01.tci-thaijo.org/index.php/muhed/article/view/136296.