PATEL J B. (1995). MANUAL ON BUSINESS OPPORTUNITY IDENTIFICATION AND SELECTION. ENTREPRENEURSHIP DEV. INSTITUTE OF INDIA.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPATEL J B. MANUAL ON BUSINESS OPPORTUNITY IDENTIFICATION AND SELECTION. AHMEDABAD: ENTREPRENEURSHIP DEV. INSTITUTE OF INDIA, 1995.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPATEL J B. MANUAL ON BUSINESS OPPORTUNITY IDENTIFICATION AND SELECTION. ENTREPRENEURSHIP DEV. INSTITUTE OF INDIA, 1995.
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