6Freeman, Linton C. The Development of Social Network Analysis A Study in Sociology of Science, Vancouver, BC(Canada) : Empirical Press ,2004,p. 39.
7Wellman, Barry, Structural analysis From method and metaphor to theory and substance. In Wellman and Berkowitz(eds). Social Structure A Network Approach, Cambridge University Press, 1988, p. 47.
8Konke D. And J. H. Kuklinski, Network Analysis Beverly Hills Sage , 1982 ,p. 9.
2Davis, James 1967, "Clustering and Structural Balance in Graphs." Human Relations 20.
3Degenne, Alain & Michel Forse 1999, Introducing Social Networks, Sage Publications.
4Marsden, P V 1983, "Restricted Access in Networks and Models of Power." American Journal of Sociology 88.
5Aldrich, Howard 1982, "The Origins and Persistence of Social Networks." in Marsden P V & Nan Lin (eds.) Social Structure and Network Analysis, Sage Publications.
6Barnes, J A 1954, "Class and Committees in a Norwegian Island Parish." Human Relations 7.
8Bearman, P S 1993, Relations into Rhetorics : Local Elite Social Structure in NooColk, England, 1540 - 1640, New Brunswick, N J : Rutgers University Press.
9Bian, Yanjie 1997, "Bringing Strong Ties Back In: Indirect Connection, Bridges, and Job Search in China." American Sociological Review 62.
10Bian Y & S Ang 1997, "Guanxi Networks and Job Mobility in China and Singapore." Social Forces 75.