O'Brien, J. A. (1996). Management information systems: A managerial end user perspective. Galgotia.
Dyfyniad Arddull ChicagoO'Brien, James A. Management Information Systems: A Managerial End User Perspective. New Delhi: Galgotia, 1996.
Dyfyniad MLAO'Brien, James A. Management Information Systems: A Managerial End User Perspective. Galgotia, 1996.
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