OWEN, L. Bogdanov-Takens Bifurcation in SIRI Model with Multiple Reinfection of COVID-19. Malaysian Journal of Science, [S. l.], v. 44, n. 2, p. 52–62, 2025. DOI: 10.22452/mjs.vol44no2.5. Disponível em: https://samudera.um.edu.my/index.php/MJS/article/view/46893. Acesso em: 1 jul. 2025.