WELL-POSEDNESS OF A NOVEL MATHEMATICAL MODEL FOR PERTUSSIS WITH VACCINATION AND ASYMPTOMATIC CLASSES. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 8, n. 3, p. 43–47, 2024. DOI: 10.33003/fjs-2024-0803-2473. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/2473. Acesso em: 2 sep. 2025.