In a digital world: Anyone can be a businessman. IN Business Agenda. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"In a Digital World: Anyone Can Be a Businessman. IN Business Agenda." Manila Bulletin .
एमएलए (9वां संस्करण) प्रशस्ति पत्र"In a Digital World: Anyone Can Be a Businessman. IN Business Agenda." Manila Bulletin, .
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