1. The World's Youth 2000 and the World's Youth 2000 Data Sheet,2000
2. The Second Decade, Improving Adolescent Health and Development,1988
3. AIDS Epidemic Update,2001
4. Mensch, B, S, Bruce, J, &, Greene, M, E, The Unchartered Passage: Girls's Adolescence in the Developing World, New York, The Population Council, 1988.
5. Sexual standards and behaviour during adolescence and psycho-social development in young adulthood;Verhofstadt-Deneve;International Journal of Adolescent Medicine and Health,1993