Burgonio, M. E. (2002). SSS found could run out by 2015, warns consulting firm. Manila Times.
Cita Chicago (17th ed.)Burgonio, Maricel E. "SSS Found Could Run Out by 2015, Warns Consulting Firm." Manila Times 2002.
Cita MLA (9th ed.)Burgonio, Maricel E. "SSS Found Could Run Out by 2015, Warns Consulting Firm." Manila Times, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.