Inês M. Tavares, MSc, Ellen T.M. Laan, PhD, Pedro J. Nobre,. Cognitive-Affective Dimensions of Female Orgasm: The Role of Automatic Thoughts and Affect During Sexual Activity. „The Journal of Sexual Medicine”. Volume 14, Issue 6, June, s. 818–828, 2017. DOI: 10.1016/j.jsxm.2017.04.004.
McBride, K. R.. Heterosexual Women’s Anal Sex Attitudes and Motivations: A Focus Group Study. „The Journal of Sex Research”, s. 1–11, 2017. DOI: 10.1080/00224499.2017.1355437.
Kimberly McBride, Dennis Fortenberry. Heterosexual Anal Sexuality and Anal Sex Behaviors: A Review. „The Journal of Sex Research”. 47:2-3, s. 123-136, 2010. DOI: 10.1080/00224490903402538.
Centers for Disease Control and Prevention (CDC), Increases in unsafe sex and rectal gonorrhea among men who have sex with men--San Francisco, California, 1994-1997, „MMWR. Morbidity and mortality weekly report”, 48 (3), 1999, s. 45–48, ISSN0149-2195, PMID: 9935141 [dostęp 2019-05-20].
nymag.com
By Em & Lo (2006-12-31): The Bottom Line. „New York Magazine”. [dostęp 2020-01-24]. [zarchiwizowane z tego adresu (2020-01-13)]. (ang.).
Underwood, Steven G. (StevenS.G.(S.Gregory)Steven G. (StevenS.G.(S., 1958-, Gay men and anal eroticism : tops, bottoms, and versatiles, New York: Harrington Park Press, 2003, ISBN 1-56023-374-5, OCLC49977264 [dostęp 2019-05-20]. Brak numerów stron w książce
Centers for Disease Control and Prevention (CDC), Increases in unsafe sex and rectal gonorrhea among men who have sex with men--San Francisco, California, 1994-1997, „MMWR. Morbidity and mortality weekly report”, 48 (3), 1999, s. 45–48, ISSN0149-2195, PMID: 9935141 [dostęp 2019-05-20].