1. Collaboration networks, structural holes and innovation: a longitudinal study;Ahuja;Administrative Science Quarterly,2000
2. Entrepreneurship through social networks;Aldrich,1986
3. Strong ties, weak ties and Strangers: do women owners differ from men in their use of networking to obtain assistance?;Aldrich,1997
4. Pakistan Entrepreneurs: Their Developments and Characteristics and Attitudes;Altaf,1983
5. The changing shape of strategic problem;Ansoff,1979