Parungao, R. (1999). Osang's ad effective but. Manila Times.
Cita Chicago (17th ed.)Parungao, Rhowena. "Osang's Ad Effective but." Manila Times 1999.
Cita MLA (9th ed.)Parungao, Rhowena. "Osang's Ad Effective but." Manila Times, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.