3[1]Bian, Y.J. 1997, "Bring Strong Ties Back in: Indirect Ties, Network Bridges and JobSearches in China", American Sociology Review 62.
4[2]Granovetter, M. 1973, The Strength of Weak Ties , American Journal of Sociology, 78.
5[4]Lin, Nan. 1982, Social Resources and Instrumental Action , in Marsden, P. and Lin,Nan. (eds), Social Structure and Network Analysis, Beverly Hills, CA:Sage Publication, Inc.Mithell,J. Clyde, 1969, The Concept and Use of Social Netmork , in Social Network in Urban Situations, edited by J. C. Mitchell. Manchester, Eng:Manchester University Press
6[5]Williamson,O. 1975, Markets and Hierarchies: Analysis and Antitrust Implications, New York: Free Press.
7Galaskiewicz. J.and A.Zaheer(1999):Networks of Competitive Advantage.
8Galaskiewicz. M.S.(1973):The Strength of Weak Ties.
9Coleman. J.S.(2OOO):Social capital in the creation of human capital.
10Burt. R.S.(1992):Structural holes: The social structure of competution.
