Fitriani, F. (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), pp. 2863–2869. doi: 10.62567/micjo.v3i2.3244.