Fitriani, F. et al. 2026. THE INFLUENCE OF INSTAGRAM SOCIAL MEDIA USAGE ON THE ACADEMIC GRADES OF 6TH-SEMESTER ECONOMICS STUDENTS AT THE TAPANULI SELATAN INSTITUTE OF EDUCATION. Multidisciplinary Indonesian Center Journal (MICJO). 3, 2 (Apr. 2026), 2863–2869. DOI:https://doi.org/10.62567/micjo.v3i2.3244.