Sukmaningtyas W, Windiarti PA. EFEKTIVITAS ENDORPHINE MASSAGE TERHADAP TINGKAT KECEMASAN IBU BERSALIN PRIMIPARA. JBP [Internet]. 2016 Jun. 10 [cited 2025 Apr. 28];7(1). Available from: https://jurnal.stikesylpp.ac.id/index.php/JBP/article/view/141