7Barton, D. G: Principles, in: D. Cobia (ed.): Cooperatives in Agriculture, Englewood Cliffs, NJ: Prentice-Hall, 1989.
8Borgen, S. O.: Rethinking Incentives Problems in Cooperative Organizations, Norwegian Agricultural Economics Research Institute, Oslo, 2003.
9Chin, W. W. & Todd, P.: On the Use, Usefulness and Ease of Use of Structural Equation Modeling in MIS Research: a Note of Caution, MIS Quarterly, 19(2): 237-246, 1995.
10Cook, M. L.: The Future of U.S. Agriculture Co-operatives: a Neo-Institutional Approach, American Journal of Agricultural Economics, 77(5): 1153-1159, 1995.