YAACOB, Yusof. Analysis of a Dengue Disease Transmission Model without Immunity. MATEMATIKA, [S. l.], v. 23, p. 75–81, 2007. DOI: 10.11113/matematika.v23.n.524. Disponível em: https://matematika.utm.my/index.php/matematika/article/view/524. Acesso em: 3 jul. 2024.