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Boonprakarn, K. , Sangkaphan, J. , Deekhuntod, B. , Suriyo, N.. "The Existence of Field Corn Networks on the Thailand-Burma Border under the Patron-Client Contract Farming System". World Academy of Science, Engineering and Technology, Open Science Index 88, International Journal of Environmental and Ecological Engineering (2014), 8(4), 379 - 381.