De Vera, R. (2002). Doreen 67: Teacher, writer, historian, friend. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDe Vera, Ruel. "Doreen 67: Teacher, Writer, Historian, Friend." Philippine Daily Inquirer 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDe Vera, Ruel. "Doreen 67: Teacher, Writer, Historian, Friend." Philippine Daily Inquirer, 2002.
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