“Efectiveness of Birth Ball and Counterpressure on Labor Pain in The Siti Julaeha Midwife Practice, Pekanbaru City”. JURNAL IBU DAN ANAK 10, no. 2 (November 30, 2022): 75–81. Diakses Januari 16, 2026. https://jurnal.pkr.ac.id/index.php/JIA/article/view/585.