Whitten, J. L. (2008). Introduction to systems analysis and design. Boston: McGraw Hill Irwin.
Trích dẫn kiểu ChicagoWhitten, Jeffrey L. Introduction to Systems Analysis and Design. Boston: McGraw Hill Irwin, 2008.
Deismireacht MLAWhitten, Jeffrey L. Introduction to Systems Analysis and Design. Boston: McGraw Hill Irwin, 2008.
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