Nasution, Yulia Fatma, Maimunah R, Desi Handayani Lubis, Nopita Yanti Sitorus, Yaumil Fauziah, and Annisa Namirah Nasution. “Effect of Endorphin Massage on Breast Milk Production in Postpartum Mothers at Pratama Hadijah Maternity Clinic”. Science Midwifery 13, no. 3 (July 10, 2025): 710–717. Accessed April 18, 2026. https://www.midwifery.iocspublisher.org/index.php/midwifery/article/view/1999.