Villanueva, M. A. (2003). Hike in contributiions mulled to shore up troubled GSIS. Philippine Star.
Cita Chicago (17th ed.)Villanueva, Marichu A. "Hike in Contributiions Mulled to Shore Up Troubled GSIS." Philippine Star 2003.
Cita MLA (9th ed.)Villanueva, Marichu A. "Hike in Contributiions Mulled to Shore Up Troubled GSIS." Philippine Star, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.