6Gartner, W. B. 1990, " What are We Talking about When We Talk about Entrepreneurship", Journal of business venturing. Vol. 5 ( 1 ).
7Johnson, S. 2000, Literature Review on Social Entrepreneurship. Canadian Centre for Social Entrepreneurship, 16.
8Kirzner, I. M. 1975, Competition and Entrepreneurship. Chicago:University of Chicago Press.
9Kirzner, I. M. 1997, "Entrepreneurial Discovery and the Competitive Market Process:An Austrian Approach", Journal of Economic Literature. Vol. 35 ( 1 ).
10Schumpeter, J.A. 1934, The Theory of Economic Development: An Inquiry into Profits, Capital Credit, Interest, and the Business Cycle. Cambridge : Harvard University Press.