Peanjaroen, Kuldara, and Salinee Tippeng. “Comparison of People’s Happiness Index (quality of life) Before and After Tourism Management in Koh Yai area, Krasae Sin District, Songkhla Province to Support Sustainable Tourism on the Sathing Phra Peninsula”. Rajamangala University of Technology Tawan-ok Social Science Journal 15, no. 1 (June 30, 2026): 41–50. accessed September 12, 2026. https://so05.tci-thaijo.org/index.php/SocialJournal2rmutto/article/view/278840.