(2002). GSIS earns P25.8 B in 2001. Philippine Star.
Cita Chicago (17th ed.)"GSIS Earns P25.8 B in 2001." Philippine Star 2002.
Cita MLA (9th ed.)"GSIS Earns P25.8 B in 2001." Philippine Star, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.