Dayyana, S., S. Suryono, M. N. Widyawati, and S. T. Hidayat. “EFFECTIVENESS OF MUSIC THERAPY ON ANXIETY AND B-ENDORPHIN LEVELS IN PRIMIGRAVIDA DURING THE THIRD STAGE OF PREGNANCY”. Belitung Nursing Journal, vol. 3, no. 6, Dec. 2017, pp. 735-42, doi:10.33546/bnj.298.