Alan Guttmacher Institute. «Sexual and Reproductive Health: Women and Men». AGI, http://www.hawaii.edu/hivandaids/Sexual%20and%20Reproductive%20Health%20%20%20%20Women% 20and%20Men,%202002.pdf.
Chandra, Anjani, William D Mosher, Casey Copen, and Catlainn Sionean. Sexual Behavior, Sexual Attraction, and Sexual Identity in the United States: Data from the 2006–2008 National Survey of Family Growth: US Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics, 2011.
Eaton, Danice K, Laura Kann, Steve Kinchen, Shari Shanklin, Katherine H Flint, Joseph Hawkins, William A Harris, Richard Lowry, Tim McManus, and David Chyen. «Youth Risk Behavior Surveillance-United States, 2011». MMWR Surveillance Summaries61, no. 4 (2012): 1 – 162.
Mosher, W. D., A. Chandra, and J. Jones. «Sexual Behavior and Selected Health Measures: Men and Women 15–44 Years of Age, United States, 2002». Adv Data, no. 362 (2005): 1 – 55.
Mosher, W. D., A. Chandra, and J. Jones. «Sexual Behavior and Selected Health Mea sures: Men and Women 15–44 Years of Age, United States, 2002». Mosher, W. D., Chandra, A., and J. Jones. Advanced Data 362 (2005): 1 – 55.