Burgonio, M. E. (2002). SSS found could run out by 2015, warns consulting firm. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBurgonio, Maricel E. "SSS Found Could Run Out by 2015, Warns Consulting Firm." Manila Times 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBurgonio, Maricel E. "SSS Found Could Run Out by 2015, Warns Consulting Firm." Manila Times, 2002.
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