Tenorio, A. S. (2003). GSIS 'headed for a crash'. Manila Times.
Chicago Style aipamenaTenorio, Arnold S. "GSIS 'Headed for a Crash'." Manila Times 2003.
MLA aipamenaTenorio, Arnold S. "GSIS 'Headed for a Crash'." Manila Times, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.