机译:Assessing the impact of non-governmental organization's extension programs on sustainable cocoa production and household income in Ghana
College of Economics and Management Jilin Agricultural University Changchun 130118 P.R.China;
Ministry of Food and Agriculture Department of Economics Accra 183 Ghana;
College of Economics and Management Jilin Agricultural University Changchun 130118 P.R.China;
College of Resources and Environment Sciences Jilin Agricultural University Changchun 130118 P.R.China;
Ghana Cocoa Board Warehousing and Port Operations Accra 1017 Ghana;