Pasayco, S. S. (2001). GSIS reinsurance monopoly: Profile of a favored broker. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Pasayco, Sheila Samonte. "GSIS Reinsurance Monopoly: Profile of a Favored Broker." Philippine Star 2001.
Lua MLA (9ú heag.)Pasayco, Sheila Samonte. "GSIS Reinsurance Monopoly: Profile of a Favored Broker." Philippine Star, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.