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Lua i Stíl Chicago (17ú heag.)Aranda, Rene A. "Kidnap Menace: Betti Sy Kidnap-slay." Philippine Star 2003.
Lua MLA (9ú heag.)Aranda, Rene A. "Kidnap Menace: Betti Sy Kidnap-slay." Philippine Star, 2003.
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