이광원 2018-11-15T07:51:26Z 2018-11-15T07:51:26Z 1981-10 R029 http://repository.krei.re.kr/handle/2018.oak/14075 산지이용의 현황과 합리적 이용방안 Status of Mountainous Areas Utilization and the Measures for Reasonable Utilization KREI 보고서 Lee, Kwangwon