1. Comprehensive sexuality education: A historical and comparative analysis of public opinion;JW Herrman;Am J Sex Educ,2013
2. Parental opinion concerning school sexuality education in a culturally diverse population in the USA;HR Heller;Sex Edu,2013
3. Public opinion on sex education in US schools;A Bleakley;Arch Pediatr Adolesc Med,2006
4. National Public Radio (NPR), Kaiser Family Foundation, and Kennedy School of Government.Sex Education in America: General public/parents survey. 2004. http://www.npr.org/programs/morning/features/2004/jan/kaiserpoll/publicfinal.pdf.
5. Demissie Z, Brener ND, McManus T, Shanklin S, Hawkins J, Kann L. School health profiles 2014: Characteristics of health programs among secondary schools. US Department of Health and Human Services, 2015. https://www.cdc.gov/healthyyouth/data/profiles/pdf/2014/2014_profiles_report.pdf