(2003). NSO and Unisys: Partners for quality public service delivery. Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"NSO and Unisys: Partners for Quality Public Service Delivery." Philippine Star 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"NSO and Unisys: Partners for Quality Public Service Delivery." Philippine Star, 2003.
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