Dewantari, Tri, Barep Hapit Surya, and Siti Zahra Bulantika. “Group Counseling With Assertive Training Techniques to Self Confidence Adolescents”. Jurnal Kependidikan : Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran, dan Pembelajaran 7, no. 1 (March 3, 2021): 35–41. Accessed October 13, 2025. https://e-journal.undikma.ac.id/index.php/jurnalkependidikan/article/view/3317.