STEVENS MICHAEL. (1990). PRACTICAL PROBLEM SOLVING FOR MANAGERS. UNIVERSAL BOOKS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSTEVENS MICHAEL. PRACTICAL PROBLEM SOLVING FOR MANAGERS. NEW DELHI: UNIVERSAL BOOKS, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSTEVENS MICHAEL. PRACTICAL PROBLEM SOLVING FOR MANAGERS. UNIVERSAL BOOKS, 1990.
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