Ayoade, A. A., S. Agunbiade, and T. Oyedepo. “Backward Bifurcation in Epidemic Models of Toxoplasma Gondii: A Qualitative Analysis”. Journal of Nepal Mathematical Society, vol. 5, no. 1, Aug. 2022, pp. 1-9, doi:10.3126/jnms.v5i1.47369.