Davis, W. S. (1983). Systems analysis and design: A structured approach. Addison-Wesley Publishing Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDavis, William S. Systems Analysis and Design: A Structured Approach. Reading, Massachusetts: Addison-Wesley Publishing Company, 1983.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDavis, William S. Systems Analysis and Design: A Structured Approach. Addison-Wesley Publishing Company, 1983.
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