1. , , & (2004). Teenagers in the United States: Sexual activity, contraceptive use, and childbearing, 2002 [Online]. Vital & Health Statistics, Series 23(24). Retrieved September 20, 2007, from www.cdc.gov/nchs/data/series/sr_23/sr23_024.pdf
2. , , & (2003). Science and success: Sex education and other programs that work to prevent teen pregnancy, HIV & sexually transmitted infections. Washington, DC: Advocates for Youth. Retrieved September 20, 2007, from www.advocatesforyouth.org/publications/ScienceSuccess.pdf
3. Trying to Consume
4. (1986). Social foundations of thought and action: A social cognitive theory. Englewood Cliffs, NJ: Prentice Hall.
5. (2003). Reducing the risk: Building skills to prevent pregnancy, HIV, and STD fourth edition. Scotts Valley, CA: ETR Associate. (www.etr.org)