1.
Widiasti W, Siregar A. Effectiveness of Group Counseling Services Using Assertive Techniques to Reduce the Physical Aggressive Behavior of Adolescents at the Medan High School. Scaffolding [Internet]. 2024Aug.14 [cited 2025Jul.1];6(2):174-85. Available from: https://ejournal.insuriponorogo.ac.id/index.php/scaffolding/article/view/5618