Upadhya, Priya, and Richard Lynch. “A Comparative Study of Student Motivation and Academic Achievement in Grade 8 Science Under Teacher-Centered and Student-Centered Instructional Methods at Triamudomsuksa Pattanakarn School, Thailand”. Scholar: Human Sciences 11, no. 1 (June 27, 2019): 108. Accessed May 24, 2025. https://auojs.au.edu/index.php/Scholar/article/view/3084.