Ochi, P. O., A. A. Agada, J. Timothy, T. G. Urum, H. T. Ochi, and D. A. Nworah. “STABILITY ANALYSIS OF A SHIGELLA INFECTION EPIDEMIC MODEL AT ENDEMIC EQUILIBRIUM”. FUDMA JOURNAL OF SCIENCES, Vol. 7, no. 3, July 2023, pp. 48 -64, doi:10.33003/fjs-2023-0703-1706.