Hasrida, H., Sari, M. R. and Nada, S. (2024) “The Effect of using E-Booklet Media on Increasing the Knowledge of Primigravida Mothers about Breastfeeding Techniques and Newborn Umbilical Cord Care”, Indonesian Journal of Global Health Research, 7(1), pp. 87-98. doi: 10.37287/ijghr.v7i1.4040.