Dewi Fika Abubakar, Rani Safitri, and Rosyidah Alfitri. “The Effect of Birthing Ball Use on the Duration of the First Stage of Active Labor ”. Proceeding International Conference Of Innovation . 5, no. 1 (June 30, 2025): 716–720. Accessed May 26, 2026. https://icistech.org/index.php/icistech/article/view/281.