Awad, E. M. (1997). Systems analysis and design (2nd ed.). Galgotia Pub.
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Chicago-čujuhus (17. p.)
Awad, E. M. Systems Analysis and Design. 2nd ed. New Delhi: Galgotia Pub, 1997.
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MLA-čujuhus (9. p.)
Awad, E. M. Systems Analysis and Design. 2nd ed. Galgotia Pub, 1997.
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