Astuti, S., Aryani, Y., & Susilawati, E. (2022). Efectiveness of Birth Ball and Counterpressure on Labor Pain in The Siti Julaeha Midwife Practice, Pekanbaru City. JURNAL IBU DAN ANAK, 10(2), 75-81. https://doi.org/10.36929/jia.v10i2.585