Junsuthonpoj, Sumeth. “Teaching Environmental Management Using Visual Thinking to Promote Learning Attitude and Achievement of Hospitality Students”. Walailak Journal of Learning Innovations 6, no. 2 (December 29, 2020): 117–131. Accessed April 29, 2024. https://so03.tci-thaijo.org/index.php/jliwu/article/view/247379.