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Sources

• Center for Disease Control and Prevention. "Teen drivers: fact sheet." July 18, 2008. (Jan. 5, 2009) http://www.cdc.gov/ncipc/factsheets/teenmvh.htm
• Tiwi. "Tiwi." (Jan. 5, 2009) http://www.tiwi.com/downloads/tiwi_fact_sheet.pdf
• Wilson, Kevin. "Coach in a box: electronic unit mentors young drivers." Autoweek. Sept. 8, 2008. (Jan. 5, 2009) http://www.autoweek.com/apps/pbcs.dll/article?AID=/20080911/FREE/809049961/1506