Marquez, J. (2002). Random drug testing in a private workplace under dangerous drug act of 2002. IN Point of law [column]. Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMarquez, Jefferson. "Random Drug Testing in a Private Workplace Under Dangerous Drug Act of 2002. IN Point of Law [column]." Philippine Star 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMarquez, Jefferson. "Random Drug Testing in a Private Workplace Under Dangerous Drug Act of 2002. IN Point of Law [column]." Philippine Star, 2002.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.