Laudon, K. C. (1993). Business information systems: A problem-solving approach (2nd ed.). Dryden.
Chicago-viite (17. p.)Laudon, Kenneth C. Business Information Systems: A Problem-solving Approach. 2nd ed. Fort Worth: Dryden, 1993.
MLA-viite (9. p.)Laudon, Kenneth C. Business Information Systems: A Problem-solving Approach. 2nd ed. Dryden, 1993.
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