ดำรงศิริธ., & มัธยมบุรุษว. (2019). The Eco Scuba Tourism Management: Case study at Koh Tao, Koh Tao District, Phangan, Surathanee. Journal of Humanities and Social Sciences University of Phayao, 4(1), 37 - 48. Retrieved from https://so03.tci-thaijo.org/index.php/Humanties-up/article/view/200325