Setiawandari, S., Noor Pramono and Koosnadi Saputra 2022. Auricular Acupuncture on Uterine Point on PGF2α Levels and First-Stage of Labor Duration among Primigravida Women. Embrio : Jurnal Kebidanan. 14, 2 (Nov. 2022), 159–167. DOI:https://doi.org/10.36456/embrio.v14i2.6003.