Doan Van Thanh Phong (2026) “STUDENT DROPOUT PREDICTION IN ONLINE COURSES BASED ON SUPERVISED CONTRASTIVE LEARNING”, HUFLIT Journal of Science, 10(4), pp. 1–11. Available at: https://hjs.huflit.edu.vn/index.php/hjs/article/view/448 (Accessed: 8 November 2026).