- Andersen, A., & Park, J., & Jack, S. (2007), Entrepreneurial Social Capital: Conceptualizing Social Capital in New High-Tech Firms, International Small Business Journal, Vol. 25, No. 3, pp. 245-272.
- Cassan, M., & Guista, M. D. (2007), Entrepreneurship & Social Capital: Analyzing the Impact of Social Networks on Entrepreneurial Activity from a Rational Action Perspective. International Small Business Journal, Vol. 25, No. 3, pp. 220-244.
- Decarolis, D. M., & Saparito, P. (2006), Social Capital, Cognition and Entrepreneurial Opportunities: A Theoretical Frame Work. Entrepreneurship Theory and Practice, pp. 41-56.
- Fukuyama, F. (1999), Social Capital & Civil Society, Paper Presented at the IMF Conference on Second Generalization Reforms, Washington, November.
- Grimes. N. J. (2007), Crime, Media, & Public Policy, Arizona State University.
- Häder, Michael and Häder, Sabine (1995), "Delphi und Kognition spsychologie: Ein Zugang zur Theoretischen Fundierung der Delphi- Methode". In: ZUMA-Nachrichten Vol.37, No.19.
- Keeney, S.; Hasson, F. and McKenna, H. P. (2001), "A critical review of the Delphi technique as a research methodology for nursing." International Journal of Nursing Studies, Vol. 38, No. 2, pp. 195-200.
- Powell, C. (2003), "The Delphi technique: Myths and realities." Methodological Issues in Nursing Research, Vol. 41, No. 4.
- Strauss Anslem.L, Corbin, Juliet.M (1998), Basics of Qualitative Research: Techniques and Procedures for Developing Grounded Theory; Sage Publications.