Permana, Alfarkhan Adji, Farhan Syarifur Rahman, and Nur’Aini Ermasaroh. “Hubungan Tindakan Bullying Dengan Tingkat Kepercayaan Diri Seseorang”. Journal of Practice Learning and Educational Development 1, no. 1 (March 31, 2021): 7–12. Accessed July 2, 2024. https://digitalpress.gaes-edu.com/index.php/jpled/article/view/2.