Anandita MYR, Anggraeni L, K A. Effectiveness of The Combination Gym Ball and Peanut Ball Techniques on The Duration of Active Phase I Labor in Primigravida. JURNAL KEBIDANAN [Internet]. 2023 Apr. 27 [cited 2026 Oct. 21];13(1):71-7. Available from: https://ejournal.poltekkes-smg.ac.id/ojs/index.php/jurkeb/article/view/9557