Choi, S. Y., and S. Phongsatha. “Factors Influencing Student Engagement in the Online Learning Environment at Asia-Pacific International University”. APHEIT International Journal of Interdisciplinary Social Sciences and Technology, vol. 12, no. 1, June 2023, pp. 24-34, https://so04.tci-thaijo.org/index.php/ATI/article/view/261804.