28. Blum RW et al., The results off competition/ethnicity, money, and you can family members construction on teenage chance behavior, Western Diary of Social Wellness, 2000, 90(12):1879–1884.
Hawes ZC, Wellings K and Stephenson J, Very first heterosexual sex in the united kingdom: a review of the literature, Diary away from Gender Browse, 2010, 47(2):137–152
29. Santelli JS ainsi que al., Brand new organization out-of sexual habits with socioeconomic position, relatives build, and you may competition/ethnicity among us teens, Western Record off Public Fitness, 2000, 90(10):1582–1588.
34. Kohler PK, Manhart Ce and you can Lafferty I, Abstinence-simply and complete sex education therefore the initiation of sexual activity and you will adolescent pregnancy, Log out-of Teenage Health, 2008, 42(4):344–351.
thirty-five. Mueller TE, Gavin Ce and you can Kulkarni An effective, New relationship ranging from gender degree and you can youth’s wedding in sexual intercourse, age to start with intercourse, and you will birth prevention explore initially sex, Record from Teenage Health, 2008, 42(1):89–96.