2018. 5. 4(금) 11:30~13:00 한국청소년정책연구원 7층 대회의실 한국청소년정책연구원 2023-05-03T10:56:18Z 2023-05-03T10:56:18Z 2018 Made available in DSpace on 2023-05-03T10:56:18Z (KST). No. of bitstreams: 0 000000027958 한국청소년정책연구원 스마트폰 스마트폰 사용실태 노르웨이 청소년 Digital disturbances in school Experiences with restrictions on students use of mobile phone Conference