106جلد دوم.
Putnam, r. 1993. Marking democracy work: cvic traditions in modern Italy. Princeton: Princeton university press.
Putnam, R.2000. Bowling Alone: The Collapse and Revival of American.
Community. New York: Simon and Schuster.
Wollenbaek, Dag and Per Selle. 2002
Does Participa tion in Voluntary
Associa tions Contribute to Social Capital: The Impact of Intensity, Scope,
And Type. :
Nonprofit and Voluntaty Sevtor Quarterly. 31 1() : 3261.