Ritonga, F., Sebayang, W., T. Bolon, C. M., & Nisa, K. (2023). Physical and Psychological Preparation in Preparing for Childbirth. COVID-19 : Journal of Health, Medical Records and Pharmacy, 1(01), 28-34. https://jurnal.devitara.or.id/index.php/sehat/article/view/60