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Lua i Stíl Chicago (17ú heag.)Barrios, Erniel B. Econometric Modeling Project for Industry, Exports and Investments: GVA Component. Quezon City: U.P. Statistical Center Research Foundation, Inc, 1996.
Lua MLA (9ú heag.)Barrios, Erniel B. Econometric Modeling Project for Industry, Exports and Investments: GVA Component. U.P. Statistical Center Research Foundation, Inc, 1996.
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