เนตรวงษ์ฐิติยา. “DEVELOPMENT OF MORAL REASONING BY TEACHING VIRTUOUS PROJECT FOLLOWING SUFFICIENCY ECONOMY PHILOSOPHY”. Journal of Industrial Education 15, no. 1 (April 29, 2016): 121-128. Accessed September 23, 2019. https://www.tci-thaijo.org/index.php/JIE/article/view/122272.