STOK W. (1985). SYSTEMS PROGRAMMING EXCERCISES IN DATA PROCESSING. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSTOK W. SYSTEMS PROGRAMMING EXCERCISES IN DATA PROCESSING. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSTOK W. SYSTEMS PROGRAMMING EXCERCISES IN DATA PROCESSING. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1985.
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