W. I. C. Blase, A. J. Balsomo, and S. G. Sabinay, “Modeling the Co-Infection Dynamics of COVID-19 and Dengue: Well-posedness, Analysis of Equilibrium Properties and Numerical Simulations”, Commun.Biomath.Sci., vol. 7, no. 2, pp. 177-201, Dec. 2024.