Loakaewnoo, Threechada, Sangsan Phumsathan, and Noppawan Tanakanjana Phongkhieo. “Environmental Awareness of Visitors to Erawan National Park, Kanchanaburi Province”. Kasetsart Journal of Social Sciences 36, no. 1 (April 1, 2015): 34–46. Accessed May 3, 2024. https://so04.tci-thaijo.org/index.php/kjss/article/view/243102.