Nilphai, P. K., P. Jinnge, and K. Pattrawiwat. “The Causal Relationship Model of Psycho-Social Factors Prosocial Behavior of Undergraduate Student”. Journal of Behavioral Science for Development, Vol. 12, no. 2, July 2020, pp. 101-19, https://so02.tci-thaijo.org/index.php/JBSD/article/view/242446.