SIMATUPANG, Valeria; SENGKEY, Virginia Gabrella. The Level of Bullying Problem among Students at School. Jurnal Pendidikan dan Konseling (JPDK), [S. l.], v. 4, n. 6, p. 10325–10334, 2022. DOI: 10.31004/jpdk.v4i6.10028. Disponível em: https://journal.universitaspahlawan.ac.id/index.php/jpdk/article/view/10028. Acesso em: 17 feb. 2026.