LUBIS, F.; NASUTION, M. A.; FITRI, A.; RIZWINIE, K. S.; SIHALOHO, J.; PASARIBU, R. A. A.; SALSABILA, S.; SIREGAR, J. A. Factors Influencing Students’ Difficulties in Using Formal Indonesian Language in The Campus Environment. EDUCTUM: Journal Research, [S. l.], v. 2, n. 6, p. 155–158, 2023. DOI: 10.56495/ejr.v2i6.405. Disponível em: https://jurnal.larisma.or.id/index.php/EJR/article/view/405. Acesso em: 5 jul. 2025.