Gholami, Hossein, Mortaza Gachpazan, and Majid Erfanian. “An Efficient Mathematical Model for the Outbreak of COVID-19from the Perspective of Numerical Analysis”. Iraqi Journal of Science 66, no. 11 (November 30, 2025): 5124–5135. Accessed January 3, 2026. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11142.