Dinh, Tuong Cao, and Sang Minh Vo. “Factors Affecting Students’ Perspectives on the Usefulness of Learning Online”. International Journal of Emerging Technologies in Learning (iJET) 17, no. 15 (August 17, 2022): pp. 123–141. Accessed May 7, 2024. https://online-journals.org/index.php/i-jet/article/view/33243.