Ng, W. (2001). SSS should study the lessons of past 10 years. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNg, Willie. "SSS Should Study the Lessons of Past 10 Years." Manila Bulletin 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNg, Willie. "SSS Should Study the Lessons of Past 10 Years." Manila Bulletin, 2001.
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