4Coleman, J. S: Foundations of Social Theory, Cambridge: Belknap, 1990.
5Ronald S. Burr:Structural Holes Versus Network Closure as Social Capital, 2000, May, in Internet.
6Paul. F. Whiteley:the Origins of Social Capital.
7Robert Ellickson, Order Without Law: How Neighbors Settle Disputes, Cambridge, MA. : Harvard University Press 1991.
8Elinor Ostrom, Governing the Commons: the Evolution of Institutions for Collective Action, Cambridge: Cambridge University Press,1990.
9Francis Fukuyama, Social Capital and Civil Society, 1999, in internet.
10Tom Schuller, Stephen Baron and John Field, Social Capital: A Riview and Critique,in Social Capital: Critical Perspectives,edit by Stephen Baron, John Field and Tom Schuller, Oxford University Press, 2000.
