Whitten, J. L., Bentley, L. D., & DIttman, K. C. (2003). Systems analysis and design methods (6th ed.). Tata McGraw Hill Education Private Limited.
Chicago-čujuhus (17. p.)Whitten, Jeffrey L., Lonnie D. Bentley, juo Kevin C. DIttman. Systems Analysis and Design Methods. 6th ed. New Delhi: Tata McGraw Hill Education Private Limited, 2003.
MLA-čujuhus (9. p.)Whitten, Jeffrey L., et al. Systems Analysis and Design Methods. 6th ed. Tata McGraw Hill Education Private Limited, 2003.
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