DJUWANTONO, Tono. Knowledge and attitude of pregnant woman toward umbilical-cord-blood collection. Indonesian Journal of Obstetrics and Gynecology, [S. l.], v. 34, n. 2, 2016. Disponível em: https://www.inajog.com/index.php/journal/article/view/249. Acesso em: 22 feb. 2026.