Solihah, R., Nurherliyany, M., Sandriani, S., & Putri, N. I. . (2023). The Effect of Gym Ball on Reducing Low Back Pain, Labor Pain, and Progress in Primigravida Labor. Nurul Ilmi : Journal of Health Sciences and Midwifery, 1(1), 30–36. https://doi.org/10.52221/nuri.v1i1.206