Gotiram, C., N. Prayai, and N. Siripantasak. “THE STUDY OF INVARIANCE OF SOCIAL COMPETENCE MEASUREMENT MODEL OF INDUSTRIAL SERVICE STUDENTS”. RMUTK Journal of Liberal Arts, vol. 2, no. 2, Sept. 2020, pp. 31-41, https://so02.tci-thaijo.org/index.php/larts-journal/article/view/244885.