Ramhadani, Dwi, 		Toyibah, Afnani, AND 		Kusmiwiyati, Ari.
" Studi Literatur: Efektivitas Birthing Ball Terhadap Nyeri Persalinan" <em>Malang Journal of Midwifery (MAJORY)</em> [Online], Volume 4 Number 1 (30 April 2022)