Maragay, F. V. (2009). Drug companies defend 'voluntary compliance'. Manila Standard Today.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMaragay, Fel V. "Drug Companies Defend 'Voluntary Compliance'." Manila Standard Today 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMaragay, Fel V. "Drug Companies Defend 'Voluntary Compliance'." Manila Standard Today, 2009.
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