1. Cultural and educational careers: The dynamics of social reproduction;Aschaffenburg;American Sociological Review,1997
2. Long term effects of volunteerism during the undergraduate years;Astin;Review of Higher Education,1999
3. Social learning theory;Bandura,1977
4. Pathways to participation;Beck;American Political Science Review,1982
5. Human capital. A theoretical and empirical analysis with a special reference to education;Becker,1964