1. Andersen, N. E., Kensing, F., Lundin, J., Mathiassen, L., Munk-Madsen, A., Rasbech, M., Ssrgaard, P. (1990). Aofssional systems development, experience, ideas and action. Englewood Cliffs, NJ: Prentice-Hall.
2. Information systems practice, education and research
3. Avison, D. E. & Wood-Harper, A. T. (1990). Multiview: An exploration in information systems development. Oxford, England: Blackwell.
4. Bjerknes, G. & Bratteteig, T. (1995). User participation and democracy: A discussion of Scandinavian research on system development. ScandinavianJounza1 of Infirmation Systems, 7(1), 73-98.