Hartati D, Jannah B, Sulasdi NAD, Sinaga SP, Sulistyaningsih, Hafidz F. The effectiveness between of yoga and birth ball in reducing labor pain: a systematic review. BKM-PHCM [Internet]. 2024Apr.30 [cited 2024Nov.23];40(04):e9512. Available from: https://journal.ugm.ac.id/v3/BKM/article/view/9512