Dela Peña, Z. B. (2004). SEC rejects GSIS bid to return PSE shares. Philippine Star.
Chicago Style (17th ed.) ZitazioaDela Peña, Zinnia B. "SEC Rejects GSIS Bid to Return PSE Shares." Philippine Star 2004.
MLA (9th ed.) ZitazioaDela Peña, Zinnia B. "SEC Rejects GSIS Bid to Return PSE Shares." Philippine Star, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.