Application of Endorphin, Oxytocin, and Sugestive (Speos) Massage Stimulation Method to Increase Breast Milk. JPK : Jurnal Proteksi Kesehatan [Internet]. 2025 Dec. 31 [cited 2026 May 25];14(2):112-8. Available from: https://jurnal.pkr.ac.id/index.php/JPK/article/view/1071