Directo, D. R. V. I. (1997). De Ocampo stresses free flow of goods and capital. Manila Chronicle.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDirecto, Dino Raymundo V. III. "De Ocampo Stresses Free Flow of Goods and Capital." Manila Chronicle 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDirecto, Dino Raymundo V. III. "De Ocampo Stresses Free Flow of Goods and Capital." Manila Chronicle, 1997.
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