(2001). RP slips to 40th in competitiveness. Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"RP Slips to 40th in Competitiveness." Philippine Star 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"RP Slips to 40th in Competitiveness." Philippine Star, 2001.
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