Photijak, W., and S. Gadhavanij. “Karaoke Discourses: A Case Study of Mekong Border Karaoke Settings”. NIDA Case Research Journal, vol. 10, no. 1, Sept. 2018, pp. 76-105, https://so04.tci-thaijo.org/index.php/NCRJ/article/view/147977.