Sri Wulandari, Sulistiyawati, Yuyun Beweli Fahmi and Elvira Junita 2025. Relationship Between Postnatal Mothers’ Knowledge And Care Behavior Of The Umbilical Cord In Newborns In The Working Area Of The Kepenuhan Community Health Center. International Journal of Health Engineering and Technology. 4, 3 (Sep. 2025). DOI:https://doi.org/10.55227/ijhet.v4i3.346.