GUMILAR, M. D.; FIRMANSYAH, B. PERANCANGAN SISTEM PELAYANAN KULIAH PENGGANTI DI INSTITUT BISNIS DAN INFORMATIKA 1957 BERBASIS WEBSITE. Jurnal Nasional Informatika (JUNIF), [S. l.], v. 4, n. 1, p. 12–19, 2023. DOI: 10.55122/junif.v4i1.944. Disponível em: https://ejournal-ibik57.ac.id/index.php/junif/article/view/944. Acesso em: 21 sep. 2025.