PENGARUH MASSAGE COUNTERPRESSURE TERHADAP PENURUNAN NYERI IBU BERSALIN KALA I: SYSTEMATIC LITERATUR REVIEW - Pebri Fitri Lestiawati1,; Diah Warastuti2,; Lisa Trina Arlym1 (JURNAL KESEHATAN DAN KEBIDANAN (JOURNAL OF HEALTH AND MIDWIFERY), 2022)