Nur Fitriani, Revica, and Ema Wahyu Ningrum. “Effectiveness of Deep Breath Relaxation Technique to Reduce Acute Pain in Spontaneous Post Partum Patients”. Viva Medika: Jurnal Kesehatan, Kebidanan Dan Keperawatan, vol. 17, no. 2, Aug. 2024, pp. 334-8, doi:10.35960/vm.v17i2.1454.