Ma, Xiaomin, Jarunee Maneeku, and Charin Mangkhang. 2019. “A Desirable Perception and Behavior of Thai Courtesy of Chinese Students in Chiang Mai University”. Journal of Graduate MCU KhonKaen Campus 6 (2):222-35. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/243535.