/정기보고서/2018년-4월-미국-z세대의-소셜-미디어-이용-행태/ 2020-01-16T06:07:42+00:00 monthly 0.6 /정기보고서/2018년-4월-평창-동계-올림픽-광고-사례-오메가-기아자동/ 2020-01-16T05:07:12+00:00 monthly 0.6 /정기보고서/2018년-4월-신규-매체-및-신규-광고-상품/ 2020-01-16T05:07:18+00:00 monthly 0.6 /정기보고서/2018년-4월-디지털-미디어-마켓-이슈/ 2020-01-16T05:07:24+00:00 monthly 0.6 /정기보고서/2018년-4월-카카오톡-부가-서비스-이용-행태로-알아본-카/ 2020-01-16T05:07:30+00:00 monthly 0.6