O'Brien, J. A. (2004). Management information systems: Managing information technology in the business enterprise (6th ed.). McGraw-Hill/Irwin.
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Chicago-čujuhus (17. p.)
O'Brien, James A. Management Information Systems: Managing Information Technology in the Business Enterprise. 6th ed. Boston: McGraw-Hill/Irwin, 2004.
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MLA-čujuhus (9. p.)
O'Brien, James A. Management Information Systems: Managing Information Technology in the Business Enterprise. 6th ed. McGraw-Hill/Irwin, 2004.
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