Laia, Albertus, Berkat Lase, and Syukur Hulu. “The Role of PPKN Teachers in Strengthening Student Character As an Effort to Prevent Bullying At SMP Negeri 5 Ulunoyo in the 2022/2023 Academic Year”. Edumaspul: Jurnal Pendidikan 7, no. 2 (October 1, 2023): 5763-5768. Accessed December 22, 2024. https://ummaspul.e-journal.id/maspuljr/article/view/7423.