6Ronstadt R. Entrepreneur [M]. Dover, Mass : Lord Publishing 1982.
7Rousseau D M. Psychological contract in organizations [M] Thousand oaks, CA : Sage, 1995.
8Blackman D, Hindle K. Would using the Psychological Contract increase Entrepreneurial Business Development potential? [C]// Handbook of Entrepreneurship and HRM, London . Edward Elgar, 2008.
9Glaser B G, Strauss A L. The discovery of grounded theory: strategies for qualitative research [M]. Chicago : Aldine Publishing Company, 1967.
10Strauss A L, Corbin J M. Basics of Qualitative Research: Grounded Theory Procedures and Techniques [M]. Thousand Oaks: Sage Publications, 1990.