Nainggolan, D. R. ., Ujung, R. M. ., & Ritonga, P. T. (2021). Influence of Hypnobirthing on Anxiety Levels Pregnant Women in The Siatas Barita Health Center Work Area In 2020. EMBRIO: Jurnal Kebidanan, 13(2), 156-163. https://doi.org/10.36456/embrio.v13i2.3513