Ibrahim, Arum Dwi Anjani, Yollanda Dwi Santi, Adelia Despriyanti. PENGGUNAAN BIRTHBALL TERHADAP NYERI PERSALINAN KALA 1. Zona Kebidanan Prog. Studi Kebidanan Univ. Batam [Internet]. 2022 Oct. 14 [cited 2024 Nov. 22];12(3). Available from: https://ejurnal.univbatam.ac.id/index.php/zonabidan/article/view/1053