Chai Ching Tan, Toprayoon, Y. . and Chansongpol, T. . . (2021) “STUDYING GROUP TOURS TO XISHUANGBANA, CHINA FOR STRATEGIC IMPLICATIONS”, Nimitmai Review Journal. Phayao, Thailand, 2(1), pp. 23–35. available at: https://so04.tci-thaijo.org/index.php/nmrj/article/view/249216 (accessed: 9 December 2025).