Guerrero, J. L. (2003). Guingona welcomes foreign investments. Philippine Star.
Chicagoスタイル(17版)引用形式Guerrero, Jaime L. "Guingona Welcomes Foreign Investments." Philippine Star 2003.
MLA(9版)引用形式Guerrero, Jaime L. "Guingona Welcomes Foreign Investments." Philippine Star, 2003.
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