Adesanya, S. O. “Initial-Boundary-Value Problem Of Hyperbolic Equations For Viscous Blood Flow Through A Tapered Vessel”. Journal of the Nigerian Mathematical Society 33, no. 1-3 (April 8, 2021): 273–283. Accessed April 20, 2024. https://ojs.ictp.it/jnms/index.php/jnms/article/view/724.