Mohsen, Ahmed Ali, and Raid Kamel Naji. “Dynamical Analysis Within-Host and Between-Host for HIV\AIDS With the Application of Optimal Control Strategy: Dynamical Analysis Within-Host and Between-Host for an HIV\AIDS”. Iraqi Journal of Science 61, no. 5 (May 28, 2020): 1173-1189. Accessed December 8, 2021. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/2042.