KLUGMAN, K. P.; KEDDY, K.; LE CAM, N. B.; HANSFORD, F. Long term serological response to Vi vaccine and protective immunity. Medical Journal of Indonesia, [S. l.], v. 7, n. Supp1, p. 88, 1998. DOI: 10.13181/mji.v7iSupp1.1045. Disponível em: http://mji.ui.ac.id/journal/index.php/mji/article/view/1045. Acesso em: 22 jan. 2025.