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2. Aldrich, H. E., & Baker, T. (1997). Blinded by the cites? Has there been progress in entrepreneurship research? In D. L. Sexton., & R. W. Smilor (Eds.), Entrepreneurship 2000. Chicago, IL: Upstart Publishing Company.
3. Baumol, W. J. (1990). Entrepreneurship: Productive, unproductive, and destructive. Journal of Political Economy, 98(5)Part 1: 893–921.
4. Psychological characteristics associated with performance in entrepreneurial firms and small businesses;Begley;Journal of Business Venturing,1987
5. The culture of entrepreneurship;Berger,1991