이정환 2018-11-15T07:45:28Z 2018-11-15T07:45:28Z 1987-04 D043 http://repository.krei.re.kr/handle/2018.oak/13513 21세기를 향한 한국농업의 역할과 발전지향 Roles of the Korean Agriculture and its Development in the 21st Century KREI 보고서 Lee, Junghwan