Dayyana, S., Suryono, S., Widyawati, M. N., & Hidayat, S. T. (2017). EFFECTIVENESS OF MUSIC THERAPY ON ANXIETY AND B-ENDORPHIN LEVELS IN PRIMIGRAVIDA DURING THE THIRD STAGE OF PREGNANCY. Belitung Nursing Journal, 3(6), 735–742. https://doi.org/10.33546/bnj.298