Martel, T. (1998). The 24-carat art of Giulio Manfredi. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Martel, Tonette. "The 24-carat Art of Giulio Manfredi." Philippine Star 1998.
Lua MLA (9ú heag.)Martel, Tonette. "The 24-carat Art of Giulio Manfredi." Philippine Star, 1998.
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