Nuyda, D. G. (1999). How much do our coral reefs cost. IN Seeing green [column]. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNuyda, Doris G. "How Much Do Our Coral Reefs Cost. IN Seeing Green [column]." Philippine Daily Inquirer 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNuyda, Doris G. "How Much Do Our Coral Reefs Cost. IN Seeing Green [column]." Philippine Daily Inquirer, 1999.
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