Harini, Ririn. “Counterpressure Dan Efek Terhadap Nyeri Persalinan Kala I Fase Aktif Pada Ibu Primigravida”. Jurnal Ners dan Kebidanan (Journal of Ners and Midwifery) 5, no. 1 (April 1, 2018): 029–033. Accessed November 23, 2024. http://ojs.phb.ac.id/index.php/jnk/article/view/261.