THE RELATIONSHIP OF PREGNANT WOMEN CLASS ACTIVITIES TO PREGNANT MOTHERS’ READINESS IN FACING LABOR AT THE PUSKESMAS BANGUN REJO VILLAGE, DELI REGENCY, SERDANG IN 2021. Int.J.Midwifery.Res 2022, 2 (1). https://doi.org/10.47710/ijmr.v2i1.27.