YESITA SANDI LANGITAN; MARIA PAULINA WAURAN; SARA AGUSTINA; SONDANG LUSIANA SITINJAK; LYNA HUTAPEA. THE MEASUREMENT OF PROPER HANDWASH KNOWLEDGE ON ELEMENTARY AND HIGHSCHOOL STUDENTS. Jurnal Cakrawala Ilmiah, [S. l.], v. 2, n. 6, p. 2367–2372, 2023. DOI: 10.53625/jcijurnalcakrawalailmiah.v2i6.4904. Disponível em: https://mail.bajangjournal.com/index.php/JCI/article/view/4904. Acesso em: 5 jul. 2025.