Kotonya, G., & Sommerville, I. (1998). Requirements engineering: Processes and techniques. Chichester: John Wiley and Sons.
Trích dẫn kiểu ChicagoKotonya, Gerald., và Ian Sommerville. Requirements Engineering: Processes and Techniques. Chichester: John Wiley and Sons, 1998.
Deismireacht MLAKotonya, Gerald., và Ian Sommerville. Requirements Engineering: Processes and Techniques. Chichester: John Wiley and Sons, 1998.
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