Sumawati, N., & Mastiningsih, P. (2019). Pengaruh Pemberian Masase Endorfin Terhadap Intensitas Nyeri Pada Proses Persalinan Fisiologis. Journal Center of Research Publication in Midwifery and Nursing, 3(1), 1-4. https://doi.org/10.36474/caring.v3i1.58