JUSTICE PANGGABEAN, M.; MOLLIQ RANGKUTI, Y.; MUSLIM KARO-KARO, I. Design of a geographic information system (gis) for the spread of covid-19 disease in medan city. Jurnal Mantik, [S. l.], v. 6, n. 4, p. 3726-3736, 2023. DOI: 10.35335/mantik.v6i4.3437. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/3437. Acesso em: 18 apr. 2026.