3Almont & Verba, 1963, Civic Culture : Political Attitudes and Democracy in Five Nations, Princeton : Princeton University Press.
4Axelrod, Robert M. 1984, The Evolution of Cooperation, New York: Basic Books.
5Banfield, Edward C. 1958, The Moral Basis of a Backward Society. Glencoe: Free Press.
6Berg, Jiyce, Dickhaut, John, & McCabe Kevin 1995, "Trust, Reciprocity and Social History ," Game and Economic Behavior, Vol, 10.
7Brehm, John & Wendy Rahn 1997, "Individual-level Evidence for the Causes and Consequences of Social Capital." American Journat of Political Science, Vol. 41 No. 3.
8Coleman,James S. 1990, Foundations of Social Theory Cambridge, MA: Harvard University Press
9Erickson, Efik H, 1963, Childhood and Society, 2d ed., New York: Norton.
10Fukuyama,Francis 1995, Trust: The Social Virtues and the Creation of Prosperity, New York: Free Press.
