Utti Marina Rifanti, Atika Ratna Dewi, and Nurlaili. “Model Matematika COVID-19 Dengan Sumber Daya Pengobatan Yang Terbatas”. Limits: Journal of Mathematics and Its Applications 18, no. 1 (May 15, 2021): 23–36. Accessed February 14, 2026. https://journal.its.ac.id/index.php/limits/article/view/5367.