FLETCHER WILLIAM I. (2003). ENGINEERING APPROACH TO DIGITAL DESIGN. PRENTICE HALL OF INDIA.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFLETCHER WILLIAM I. ENGINEERING APPROACH TO DIGITAL DESIGN. NEW DELHI: PRENTICE HALL OF INDIA, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFLETCHER WILLIAM I. ENGINEERING APPROACH TO DIGITAL DESIGN. PRENTICE HALL OF INDIA, 2003.
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