VOHRA N D. (2002). QUANTITATIVE TECHNIQUES IN MANAGEMENT (2ND.). TATA MCGRAW-HILL PUBLISHING COMPANY.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVOHRA N D. QUANTITATIVE TECHNIQUES IN MANAGEMENT. 2ND. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVOHRA N D. QUANTITATIVE TECHNIQUES IN MANAGEMENT. 2ND. TATA MCGRAW-HILL PUBLISHING COMPANY, 2002.
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