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http://it.donga.com/22220/

http://m.fastcompany.com/3050187/lessons-learned/i-joined-google-at-19-heres-what-i-learned

http://media.daum.net/life/living/interior/newsview?newsId=20150820090210330

http://bookwormkr.tistory.com/m/post/215

http://m.seoul.co.kr/news/newsView.php?id=20150821500266&cp=stv

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http://m.news.naver.com/hotissue/read.nhn?sid1=103&cid=992749&iid=1025661&oid=016&aid=0000826607

http://www.father.or.kr/board/read.action?id=notice&sm=060100&p_del_chk=N&no=44340&pageNum=1