강정일 최지현 기칠능 2018-11-15T07:52:51Z 2018-11-15T07:52:51Z 1987-12 R150 http://repository.krei.re.kr/handle/2018.oak/14205 자유시판비료의소비 및 유통실태 조사연구 A Research on Consumption and Distribution of Fertilizers Freely Sold in the Market KREI 보고서 Kang, Jungil Choi, Jihyeon