Nuchprasop, K., and U. Intarakamhang. “A Causal Relationship Model of Students’ Participatory Behavior towards University Social Responsibility”. The Journal of Behavioral Science, vol. 13, no. 1, Oct. 2017, pp. 15-26, https://so06.tci-thaijo.org/index.php/IJBS/article/view/87110.