2018-11-15T08:26:32Z 2018-11-15T08:26:32Z 1983-12 JRD06-2-06 http://repository.krei.re.kr/handle/2018.oak/15726 KREI Models of Extension and Communication with Farmers Evaluation for Replicability Models of Extension and Communication with Farmers Evaluation for Replicability KREI 논문 K. N. Singh