PADMANABHAM T R. (1983). DIGITAL SYSTEMS AND MICROPROCESSORS. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPADMANABHAM T R. DIGITAL SYSTEMS AND MICROPROCESSORS. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1983.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPADMANABHAM T R. DIGITAL SYSTEMS AND MICROPROCESSORS. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1983.
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