Rahim, Rosita, Mutiara Rachmawati Suseno, Ati Sulianty, and Baiq Yuni Fitri Hamidiyanti. 2024. “Pengaruh Birth Ball Terhadap Lama Persalinan Kala I Fase Aktif Pada Primigravida ”. Indonesian Health Issue 3 (2):89-96. https://doi.org/10.47134/inhis.v3i2.74.