.Norman, R. J. (1996). Object-oriented systems analysis and design. Prentice Hall.
Tohutoru Kātū Chicago (17th ed.).Norman, Ronald J. Object-oriented Systems Analysis and Design. Upper Saddle River, NJ: Prentice Hall, 1996.
Tohutoro MLA (9th ed.).Norman, Ronald J. Object-oriented Systems Analysis and Design. Prentice Hall, 1996.
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