ASTRIKA, Gemini; 						PANGGAYUH, Ardi; 						MARDIYANTI, Tri.
 The Effect Of Birthing Ball On The Duration  Of Active Phase In Primigravida At Pmb Yulis Indriana, Malang.
<strong>Jurnal Pendidikan Kesehatan</strong>, [S.l.], v. 8, n. 2, p. 164-175, oct. 2019.
ISSN 2442-7993.
Available at: &lt;<a href="https://ojs.poltekkes-malang.ac.id/index.php/jpk/article/view/1021" target="_new">https://ojs.poltekkes-malang.ac.id/index.php/jpk/article/view/1021</a>&gt;. Date accessed: 22 jan. 2025.
doi: <a href="https://doi.org/10.31290/jpk.v8i2.1021">https://doi.org/10.31290/jpk.v8i2.1021</a>.