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Farmers’Preferences for Crop Contracts. Lajili,Kaouthar. et al. Journal of Agricultural and Resource Economics . 1997
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The Effect of Personal and Farm Characteristics upon Grain Marketing Practices. Sartwelle,James.et al. . 2000
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Living Under Contract: Contract Farming and Agrarian Transformation in the Sub-Saharan Africa. Little, D Peter,,Watts, J.Michael. Journal of Women s Health . 1994