Tham khảo Vùng_kín

    • "Health Information—Find Articles, Tools, and Tips at MerckEngage.com". Mercksource.com. 2011-06-25. Truy cập 2011-08-21.[permanent dead link]
    • Fischtein, Dayna S.; Herold, Edward S.; Desmarais, Serge (2005). "Canadian attitudes toward female topless behaviour: a national survey". The Canadian Journal of Human Sexuality. Archived from the original on 2012-01-19. Truy cập 2011-08-21.
    • "Religions - Islam: Hijab". BBC. 2009-09-03. Truy cập 2011-08-21.
    • International Naturist Federation Welcome page. Truy cập Jan 2015
    • Van Blarcom, Jeffrey. "Physician Attire: A Scholarly Look." Hospital pediatrics 2.4 (2012): 249-252.