(2004). The GSIS and its commitment to reform and better service. Philippines Free Press.
Chicago Style aipamena"The GSIS and Its Commitment to Reform and Better Service." Philippines Free Press 2004.
MLA aipamena"The GSIS and Its Commitment to Reform and Better Service." Philippines Free Press, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.