LUGE, Miclyael; HASIBUAN, Rahman Wahabi. Model Epidemik SIR pada Kasus Covid-19 di Provinsi Sumatera Utara. MUST: Journal of Mathematics Education, Science and Technology, [S. l.], v. 7, n. 2, p. 2023–210, 2022. Disponível em: https://journal.um-surabaya.ac.id/matematika/article/view/18508. Acesso em: 3 oct. 2026.