The effect of leaflet media on the level of mother’s knowledge about pneumonia as an effort to prevent pneumonia in toddlers in kalibawang district, wonosobo regency. Proceeding ICHBS, [S. l.], v. 1, n. 1, p. 62–70, 2025. Disponível em: https://ichbs.uhb.ac.id/index.php/proceeding/article/view/85. Acesso em: 2 jul. 2025.