ชัยมุสิก ส. (2017). ECO-TOURISM AND ENVIRONMENTAL PRESERVATION OF PEOPLE IN KOH CHANGTAI SUB-DISTRICT, KOH CHANG DISTRICT, TRAT PROVINCE. Journal of Yanasangvorn Research Institute Mahamakut Buddhist University, 8(1), 95–105. Retrieved from https://so04.tci-thaijo.org/index.php/yri/article/view/188621