The Effect of Oxytocin Massage on Breast Milk Production in Postpartum Mothers at RSUD Dr. M. Thomsen Nias. HIJM [Internet]. 2026 Jul. 16 [cited 2026 Aug. 12];4(4):4136-45. Available from: https://ejournal.indo-intellectual.id/index.php/hijm/article/view/5693