윤석 2016-02-25T09:28:55Z 2016-02-25T09:28:55Z 20070430 2007 54782 http://search.kca.go.kr/libtechupload/소비자보호를_위한_환불제도의_개선방안.pdf https://www.kca.go.kr/repo/handle/2015.oak/347 소비자보호를_위한_환불제도의_개선방안.pdf 윤석 http://creativecommons.org/licenses/by-nc-nd/2.0/kr/ 소비자보호를 위한 환불제도의 개선방안 = A Economic Perspective to Improve the Refund System for Consumer Protection 논문