MUTAIRU. K., KOLAWOLE; RASHEED G. , AYOOLA. Mathematical Modeling of Typhoid Dynamics with Age Structure, Vaccination, and Treatment through Homotopy Perturbation Method. Ethiopian Journal of Natural and Computational Sciences , [S. l.], v. 5, n. 2, p. 713–737, 2025. Disponível em: https://journal.uog.edu.et/index.php/EJNCS/article/view/1120. Acesso em: 12 nov. 2025.