Witchayakawin, Pakin. “Sustainable Tourism Development in Koh Yao Yai, Pang-Nga, Thailand”. IJRDO - Journal of Social Science and Humanities Research 2, no. 8 (August 31, 2017): 83-95. Accessed November 25, 2024. https://ijrdo.org/index.php/sshr/article/view/830.