Ferreria, A. (2002). This business of entrepreneurship. IN Entrepreneurs' help-line [column]. Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFerreria, Alejandrino. "This Business of Entrepreneurship. IN Entrepreneurs' Help-line [column]." Philippine Star 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFerreria, Alejandrino. "This Business of Entrepreneurship. IN Entrepreneurs' Help-line [column]." Philippine Star, 2002.
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