Idowu, Oluwatobi Kabir, and Adedapo Chris Loyinmi. “Qualitative Analysis of the Transmission Dynamics and Optimal Control of Covid-19”. EDUCATUM Journal of Science, Mathematics and Technology 10, no. 1 (June 23, 2023): 54–70. Accessed May 12, 2025. https://ejournal.upsi.edu.my/index.php/EJSMT/article/view/7865.