IMMUNIZATION FLASHCARD: EFFECTIVE AS AN EDUCATION MEDIA FOR POSYANDU cadres IN SURAKARTA. Proceedings OPTIMAL, [S. l.], v. 1, n. 1, 2024. DOI: 10.5281/zenodo.15952559. Disponível em: https://proceedings.nuansafajarcemerlang.com/index.php/ico/article/view/74. Acesso em: 14 apr. 2026.