Widiasti, Wenny, and Alfin Siregar. “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, no. 2 (August 14, 2024): 174–185. Accessed July 1, 2025. https://ejournal.insuriponorogo.ac.id/index.php/scaffolding/article/view/5618.