1. Adolescents at risk: prevalence and prevention;Dryfoos,1990
2. Adolescent health;Millstein,1990
3. Promoting the health of adolescents: New directions for the twenty-first century,1993
4. National Research Council: Losing generations: Adolescents in high-risk settings,1993
5. Basic issues and problems of health in adolescence;Hurrelman,1990