Healthline. https://www.healthline.com/health/pregnancy/perineal-massage#how-to
Diakses 15 Maret 2020American Pregnancy. https://americanpregnancy.org/first-year-of-life/perineal-massage-pregnancy/
Diakses 15 Maret 2020Baby Centre. https://www.babycentre.co.uk/x1955/what-is-perineal-massage-and-how-is-it-done
Diakses 15 Maret 2020