Manju, Kabiru A., Abdulfatai A. Momoh, Y. B. Chukkol, and Musa Isiyaku. 2023. “Mathematical Modeling and Optimal Control of Intervention Strategies for Covid-19 Disease”. International Journal of Science for Global Sustainability 9 (2):168-87. https://doi.org/10.57233/ijsgs.v9i2.469.