Gatdula, D. (1999). SSS eyes new types of investment. Philippine Star.
Chicago Style aipamenaGatdula, Donnabelle. "SSS Eyes New Types of Investment." Philippine Star 1999.
MLA aipamenaGatdula, Donnabelle. "SSS Eyes New Types of Investment." Philippine Star, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.