(2001). RP joins bid to control chemicals that make illicit drugs. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"RP Joins Bid to Control Chemicals That Make Illicit Drugs." Philippine Daily Inquirer 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"RP Joins Bid to Control Chemicals That Make Illicit Drugs." Philippine Daily Inquirer, 2001.
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