Kumar, P. (2012). Product design: Creativity, concepts and usability. PHI Learning Private.
Chicago Style (17. basım) AtıfKumar, Prashant. Product Design: Creativity, Concepts and Usability. New Delhi: PHI Learning Private, 2012.
MLA (9th ed.) AtıfKumar, Prashant. Product Design: Creativity, Concepts and Usability. PHI Learning Private, 2012.
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