Catipon, E. (2001). The shape of things to come. Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCatipon, Eric. "The Shape of Things to Come." Philippine Star 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCatipon, Eric. "The Shape of Things to Come." Philippine Star, 2001.
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