Sagala, R.S. et al. (2026) “EDUCATING STUDENTS ON THE CAUSES AND CONSEQUENCES OF LITTERING AT SD N 100050 PASAR MATANGGOR USING A GROUP DISCUSSION METHOD TO ENHANCE CRITICAL THINKING SKILLS”, Multidisciplinary Indonesian Center Journal (MICJO), 3(4), pp. 4947–4955. doi:10.62567/micjo.v3i4.3134.