Poondej, Chanut, and Thanita Lerdpornkulrat. 2016. “Relationship Between Motivational Goal Orientations, Perceptions of General Education Classroom Learning Environment, and Deep Approaches to Learning”. Kasetsart Journal of Social Sciences 37 (2):100-103. https://so04.tci-thaijo.org/index.php/kjss/article/view/242846.