Villanueva, M. A. (2004). GSIS gives P1-B check to national gov't. Philippine Star.
Cita Chicago (17th ed.)Villanueva, Marichu A. "GSIS Gives P1-B Check to National Gov't." Philippine Star 2004.
Cita MLA (9th ed.)Villanueva, Marichu A. "GSIS Gives P1-B Check to National Gov't." Philippine Star, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.