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Agricultural Economics > 41 > 5 > 385 - 395
World Development > 2008 > 36 > 4 > 625-640
Economic Botany > 2008 > 62 > 3 > 530-539
Agricultural Economics > 41 > 5 > 385 - 395
World Development > 2008 > 36 > 4 > 625-640
Economic Botany > 2008 > 62 > 3 > 530-539