1. Boys and girls: The development of gender roles;Beal,1993
2. The study of culture, ethnicity, and race in American psychology;Betancourt;American Psychologist,1993
3. The ecology of human development;Bronfenbrenner,1979
4. Ecologically valid frameworks of development: Accounting for continuities and discontinuities across contexts;Cocking,1994
5. The zone of proximal development: Where culture and cognition create each other;Cole,1985