Delfinado, R. D. (1999). The star's Top Ten business stories of 198. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Delfinado, Rica D. "The Star's Top Ten Business Stories of 198." Philippine Star 1999.
Lua MLA (9ú heag.)Delfinado, Rica D. "The Star's Top Ten Business Stories of 198." Philippine Star, 1999.
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