ERNA RAHMAWATI. Relationship between Knowledge and Attitudes of Parents About IPV ( Inactivated Poliovirus Vaccine)Immunization at the Age of 4 – 18 Months. Journal of Global Research in Public Health, [S. l.], v. 8, n. 1, p. 70–73, 2023. DOI: 10.30994/jgrph.v8i1.439. Disponível em: https://jgrph.org/index.php/JGRPH/article/view/439. Acesso em: 18 jul. 2025.