Lopez, E. H. (2004). Ben Wong, Director, Singapore Exhibition Services, Pte. Ltd.. IN Pro-files [column]. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLopez, Edu H. "Ben Wong, Director, Singapore Exhibition Services, Pte. Ltd.. IN Pro-files [column]." Manila Bulletin 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLopez, Edu H. "Ben Wong, Director, Singapore Exhibition Services, Pte. Ltd.. IN Pro-files [column]." Manila Bulletin, 2004.
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