Bilaketaren emaitzak - "Primary commodities"
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11
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12
Primary commodity prices and terms of trade of developing countries a preliminary review
Argitaratua 1989Liburua -
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14
Guide to commodities producers, players and prices, markets, consumers, and trends
Argitaratua 2013Liburua -
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16
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17
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18
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19
Philippine food supply sufficient amid pandemic —DA
Argitaratua izan da Philippine Star (2020)Artikulua -
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