Boonying, J., T. Armartpundit, and S. Kumsuchart. “Factors Influencing Health Volunteer to Participate in Village Health Promotion Administration in Ubon Rachathani Province”. Journal of Health Science of Thailand, vol. 22, no. 6, Dec. 2017, pp. 997-1004, https://thaidj.org/index.php/JHS/article/view/930.