김운근 김태곤 허영구 2018-11-15T07:52:15Z 2018-11-15T07:52:15Z 1985-12 R103 http://repository.krei.re.kr/handle/2018.oak/14151 고령화추세에 따른 농업구조 조정 및 제도개선 방안 Aging-driven Changes in Agriculture and Measures to Improve the Institution KREI 보고서 Kim, Woonkeun Kim, Taegon Heo, Yonggoo