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Lua i Stíl Chicago (17ú heag.)Gayi, Samuel K., agus Komi Tsowou. Cocoa Industry: Integrating Small Farmers into the Global Value Chain. New York: United Nations, 2016.
Lua MLA (9ú heag.)Gayi, Samuel K., agus Komi Tsowou. Cocoa Industry: Integrating Small Farmers into the Global Value Chain. United Nations, 2016.
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