Bulalacao, J. (2003). A more serious problem than SARS. Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBulalacao, Jose. "A More Serious Problem than SARS." Philippine Star 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBulalacao, Jose. "A More Serious Problem than SARS." Philippine Star, 2003.
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