Rojanaworarit, C., A. Panza, A. Thearrnontree, A. Muengsan, P. Havanond, and R. S. Chapman. “Self-Initiated Reasons For Utilizing Dental Services By Thai Adult and Elderly Patients Attending A Rural Public Hospital”. Journal of Health Research, vol. 24, no. Suppl. 1, Nov. 2018, pp. 63-69, https://he01.tci-thaijo.org/index.php/jhealthres/article/view/157030.