Ibrahim Elnour Ibrahim University of Kordofan, Faculty of Natural Resources and Environmental Studies, Department of Agricultural Economics
Elobeid- Sudan Sudan
Mohammed Ahmed Al-feel University of Khartoum, Faculty of Agriculture, Department of agricultural Economics
Khartoum, Shambat. Sudan Sudan
Adam Elhag Ahmed University of Khartoum, Faculty of Agriculture, Department of agricultural Economics
Khartoum, Shambat. Sudan Sudan