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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLUCAS HENRY C. ANALYSIS & IMPLEMENTATION OF INFORMATION SYSTEMS. 4TH. NEW DELHI: MCGRAW-HILL, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLUCAS HENRY C. ANALYSIS & IMPLEMENTATION OF INFORMATION SYSTEMS. 4TH. MCGRAW-HILL, 1992.
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