Isah, N., M. O. Ibrahim, B. Y. Isah, and B. A. Magaji. “Bifurcation Analysis of an Age Structured Malaria Model”. International Journal of Mathematical Sciences and Optimization: Theory and Applications, Vol. 10, no. 3, July 2024, pp. 106 -32, http://ijmso.unilag.edu.ng/article/view/2200.