HAREFA, Tresna Noni Bekris; HASIBUAN, Mila Nirmala Sari; ANJAR, Agus; JUNITA. THE ROLE OF SCHOOL REGULATIONS IN IMPROVING STUDENT DISCIPLINE IN GRADE X AT SMKN 3 RANTAU UTARA. SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL, [S. l.], v. 15, n. 2, p. 2883–2892, 2026. DOI: 10.36526/sosioedukasi.v15i2.8775. Disponível em: https://ejournal.unibabwi.ac.id/index.php/sosioedukasi/article/view/8775. Acesso em: 29 aug. 2026.