?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=VALENTINA+SELIN&rft.aulast=PRATIWI&rft.au=PRATIWI%2C+VALENTINA+SELIN&rft.date=15+October+2021&rft.inst=Poltekkes+Tanjungkarang&rft.degree=Diploma&rft.title=PENERAPAN+TEKNIK+BIRTHING+BALL+TERHADAP+KEMAJUAN+PERSALINAN+PADA+NY.A+G1P0A0+INPARTU+KALA+1+FASE+AKTIF+DI+PMB+RATNA+WULANSARI%2C+A.MD.KEB+TULANG+BAWANG+BARAT