Villanueva, M. A. (1999). Erap launches Concord for Charter change initiative. Philippine Star.
Cita Chicago (17th ed.)Villanueva, Marichu A. "Erap Launches Concord for Charter Change Initiative." Philippine Star 1999.
Cita MLA (9th ed.)Villanueva, Marichu A. "Erap Launches Concord for Charter Change Initiative." Philippine Star, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.