Geng, G., S. . Prommuangkun, and P. . Bunrueng. “A Mixed Method Research of Factors Affecting Faculty Retention in Four-Year Public Higher Education Institutions in Guangxi Zhuang Autonomous Region People’s Republic of China”. Journal of Graduate School, Pitchayatat, Ubon Ratchathani Rajabhat University, vol. 15, no. 2, Aug. 2020, pp. 211-23, https://so02.tci-thaijo.org/index.php/Pitchayatat/article/view/244341.