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Lua i Stíl Chicago (17ú heag.)Filio, Candido P. "The Concept of Functional Loyalty: From Hubbard to Hirschman." Philippine Daily Inquirer 1998.
Lua MLA (9ú heag.)Filio, Candido P. "The Concept of Functional Loyalty: From Hubbard to Hirschman." Philippine Daily Inquirer, 1998.
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