nur sarah. EVIDENCE BASED CASE REPORT (EBCR) PENGARUH PENGGUNAAN BIRTH BALL DALAM MENGURANGI NYERI PERSALINAN : kala I, nyeri persalinan, terapi birth ball. JKS [Internet]. 2024Dec.30 [cited 2025Feb.6];5(2):624-32. Available from: https://jurnal.polkesban.ac.id/index.php/jks/article/view/2435