Directo, D. R. V. I. (1997). De Ocampo stresses free flow of goods and capital. Manila Chronicle.
Lua i Stíl Chicago (17ú heag.)Directo, Dino Raymundo V. III. "De Ocampo Stresses Free Flow of Goods and Capital." Manila Chronicle 1997.
Lua MLA (9ú heag.)Directo, Dino Raymundo V. III. "De Ocampo Stresses Free Flow of Goods and Capital." Manila Chronicle, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.