2016-05-17T19:00:01Z 2016-05-17T19:00:01Z 19991028 1900 39516 http://search.kca.go.kr/libtechupload/『空甁保證金制』運用實態調査.pdf https://www.kca.go.kr/repo/handle/2015.oak/2824 『空甁保證金制』運用實態調査.pdf http://creativecommons.org/licenses/by-nc-nd/2.0/kr/ 공병보증금제 운용실태조사(91-8). 보고서