Shelly, G. B., Cashman, T. J., & Rosenblatt , H. J. Systems Analysis and Design (4th ed.).
Chicago-čujuhus (17. p.)Shelly, Gary B., Thomas J. Cashman, juo Harry J. Rosenblatt. Systems Analysis and Design. 4th ed. THOMSON.
MLA-čujuhus (9. p.)Shelly, Gary B., et al. Systems Analysis and Design. 4th ed.
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