Romdhoni, Rhezwan Dhaifullah, et al. “Machine Learning-Based Early Warning for Student Dropout: Evidence from LMS Behavioral Engagement Patterns in Online Higher Education”. Journal of Informatics and Vocational Education, vol. 9, no. 2, July 2026, pp. 55-66, https://doi.org/10.20961/joive.v9i2.3508.