Sari, Nurmala, Ariawan Soejoenoes, Sri Wahyuni, Onny Setiani, and Choiroel Anwar. “THE EFFECTIVENESS OF COMBINATION OF OXYTOCIN AND ENDORPHIN MASSAGE ON UTERINE INVOLUTION IN PRIMIPAROUS MOTHERS”. Belitung Nursing Journal 3, no. 5 (October 30, 2017): 569–576. Accessed April 24, 2024. https://www.belitungraya.org/BRP/index.php/bnj/article/view/193.