Poltanee, Issarapong, and Umaporn Boonphetkaew. 2018. “Foreign Tourist Satisfaction on Potential of Tourist Attractions at Pa-Ngan Island in Surat Thani Province As a Guideline to Promote Sustainable Tourism”. JOURNAL OF SOUTHERN TECHNOLOGY 11 (1):13-20. https://so04.tci-thaijo.org/index.php/journal_sct/article/view/124187.