SIAHAAN, S.; MANURUNG, L. THE OBSTACLES TEACHERS FACE IN INCREASING DISCIPLINE CHARACTER AT SD NEGERI 173553 SIMAREMARE JAE . Jurnal Pendidikan dan Pengajaran (JUPEJA), [S. l.], v. 3, n. 2, p. 49–56, 2025. DOI: 10.69820/jupeja.v3i2.235. Disponível em: https://merwinspy.org/journal/jupeja/article/view/235. Acesso em: 20 may. 2026.