김재영 2018-07-03T16:30:01Z 2018-07-03T16:30:01Z 20180413 2017 58345 http://search.kca.go.kr/libtechupload/201710개인형이동수단.pdf https://www.kca.go.kr/repo/handle/2015.oak/3650 201710개인형이동수단.pdf 한국소비자원 http://creativecommons.org/licenses/by-nc-nd/2.0/kr/ 개인형이동수단퍼스널모빌리티의소비자보호방안연구 보고서