Laia, Albertus Arozato, Berkat Persada Lase, and Syukur Kasieli Hulu. 2023. “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 (2). https://doi.org/10.33487/edumaspul.v7i2.7423.