Ritthiboon, N., and S. Boonlua. “The Comparative Study of Factors Influencing Work Behaviors of Generation X and Generation Y Employees in the State Universities in the Northeast Region”. Journal of Humanities and Social Sciences, Rajapruk University, Vol. 6, no. 2, Aug. 2020, pp. 214-30, https://so03.tci-thaijo.org/index.php/rpu/article/view/246228.