Telova, Y. 2022. The Effect Of Counterpressure Birth Ball On The Reduction Of Labor Pain In Bpm Maiharti Kisaran Barat In 2022. JURNAL KEBIDANAN KESTRA (JKK). 5, 1 (Oct. 2022), 161–165. DOI:https://doi.org/10.35451/jkk.v5i1.1342.