Widiasti, W. and Siregar, A. 2024. Effectiveness of Group Counseling Services Using Assertive Techniques to Reduce the Physical Aggressive Behavior of Adolescents at the Medan High School. Scaffolding: Jurnal Pendidikan Islam dan Multikulturalisme. 6, 2 (Aug. 2024), 174-185. DOI:https://doi.org/10.37680/scaffolding.v6i2.5618.