Sitthisopasakul, T. ., Kanjanawasee, S. ., & Bhongmakapat, T. . (2021). Social Returns on Investment for doctor of philosophy program in educational measurement and evaluation. Kasetsart Journal of Social Sciences, 42(4), 878–885. Retrieved from https://so04.tci-thaijo.org/index.php/kjss/article/view/255745