Hunt, B. ., S. . Petchsakunwong, and S. . . Piyarattanawong. “The Needs for Tour Guides Among Tour Operators in Five Important Tourist Provinces in the Southern Part of Thailand”. Journal of Multidisciplinary in Humanities and Social Sciences, vol. 4, no. 1, Mar. 2021, pp. 297-11, https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/245739.