Stability Analysis and Optimal Control of Mathematical Model of Thypoid Fever Spread. InPrime: Indonesian Journal of Pure and Applied Mathematics, [S. l.], v. 5, n. 1, p. 22–37, 2023. DOI: 10.15408/inprime.v5i1.27205. Disponível em: https://journal.uinjkt.ac.id/inprime/article/view/27205. Acesso em: 20 nov. 2025.