Pimonsompong, Chalongsri. “The Development of a Tourism Specialist Program in Promoting the Efficiency of Tourism Personnel”. JOURNAL OF SOUTHERN TECHNOLOGY 18, no. 1 (April 17, 2025): 189–198. accessed September 19, 2026. https://so04.tci-thaijo.org/index.php/journal_sct/article/view/275266.