William J. B. OLDHAM, JR. Simulations of Infectious Disease Propagation II: Herd Immunity Examined. Issues and Development in Health Research Vol. 6, [S. l.], p. 84–93, 2021. DOI: 10.9734/bpi/idhr/v6/14162D. Disponível em: https://stm.bookpi.org/IDHR-V6/article/view/4248. Acesso em: 13 jun. 2026.