Khongpirun, Wanwisa, Sarunya Thiphom, and Wirot Chanthorn. 2017. “Factors Associated With Waste Management Behaviors Among Pongpa Village, Kaeng Sopha Sub-District, Wang Thong District, Phitsanulok Province, Thailand”. Journal of Health Science of Thailand 26 (2):310-21. https://thaidj.org/index.php/JHS/article/view/87.