Maragay, F. V. (2009). Drug companies defend 'voluntary compliance'. Manila Standard Today.
Čikaški stil citiranja (17. izdanje)Maragay, Fel V. "Drug Companies Defend 'Voluntary Compliance'." Manila Standard Today 2009.
MLA način citiranja (9. izdanje)Maragay, Fel V. "Drug Companies Defend 'Voluntary Compliance'." Manila Standard Today, 2009.
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