7Bourdieu,Pierre,The form s of Social Capital In Hand- book of Theory and Research for the Sociology of Edu- cation, (ed.) by John G. Richardson,Westport,CT.: Greenwood Press. 1986.
8Burt,Ronald S. Structural Holes:The Social Structure of Competition,Cambridge,MA:Harvard University Press. 1992.
9Portes,Alejandro,Social Capita :Its Origins and Appli- cations in Modem Sociology', Annual Review of Sociolo- gy 1998, (24).
