Lirio, G. (1998). Regional sales chief used to put up posters in markets. Philippine Daily Inquirer.
Lua i Stíl Chicago (17ú heag.)Lirio, Gerry. "Regional Sales Chief Used to Put Up Posters in Markets." Philippine Daily Inquirer 1998.
Lua MLA (9ú heag.)Lirio, Gerry. "Regional Sales Chief Used to Put Up Posters in Markets." Philippine Daily Inquirer, 1998.
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