https://www.joomag.com/mag/0501475001491996918?page=68
http://www.segye.com/newsView/20160714002775
http://www.koreaherald.com/view.php?ud=20150705000368
http://www.leisuretimes.co.kr/news/articleView.html?idxno=16079
http://news.hankyung.com/culturesports/2015/04/24/201504241358g