Chantaburee, Sunadtra. “Opportunity and Competitiveness in the Tourism Business in Thailand”. University of the Thai Chamber of Commerce Journal Humanities and Social Sciences 36, no. 1 (January 1, 2018): 129–148. Accessed May 10, 2024. https://so06.tci-thaijo.org/index.php/utccjournalhs/article/view/184944.