Hussain, Shah, Asma Khalid, Saira Javed, and Ilyas Khan. 2025. “Stochastic SEIR Model With Two Infectious Classes Under Environmental Variability: Well-Posedness, Extinction Persistence Thresholds, and Milstein Based 3D Simulations”. Contemporary Mathematics 6 (6):8128-45. https://doi.org/10.37256/cm.6620258833.