NURHAYIDA SILALAHI; ESTER JULINDA SIMARMATA; ROSDIANA SAMOSIR. Optimizing Character Formation: Community Service to Improve Student Discipline at the Elementary School Level . Jurnal Pengabdian Masyarakat dan Riset Pendidikan, [S. l.], v. 2, n. 3, p. 174–178, 2024. DOI: 10.31004/jerkin.v2i3.239. Disponível em: https://jerkin.org/index.php/jerkin/article/view/239. Acesso em: 7 jun. 2026.