Picture of the Vagina. http://www.webmd.com/women/picture-of-the-vagina#1 . Accessed 18/05/2017.
Female Reproductive Organ Anatomy. http://emedicine.medscape.com/article/1898919-overview . Accessed 18/05/2017.
There are apparently five different types of vagina … so which do YOU have ? https://www.thesun.co.uk/living/3308350/five-different-types-vaginas/ . Accessed 18/05/2017.
Is my vagina normal? http://www.nhs.uk/Livewell/vagina-health/Pages/normal-vagina.aspx . Accessed 18/05/2017.