C. I. Nkeki and I. A. Mbarie, “On Mathematical Modelling and Global Stability Analysis of an SEQI$_1$I$_2$I$_3$HR Chickenpox Epidemic Model with Vaccination Rate”, JAND, vol. 15, no. 2, pp. 409–438, Aug. 2026, doi: 10.5890/JAND.2026.06.012.