- Press date : December 14, 2011 - Press Media : Korea Joongang Daily - Original article : http://article.joinsmsn.com/news/article/article.asp?total_id=6890851&ctg=1105

2011-12-14

- Press date : December 12, 2011 - Press Media : ETNEWS - Original article : http://www.etnews.com/201112090116

2011-12-12

- Press date : July 22, 2011 - Press Media : Moneytoday - Original article : http://news.mt.co.kr/mtview.php?no=2011072114473911986&type=2  

2011-07-22

- Press date : June 9, 2011 - Press Media : Digital Daily - Original article : http://www.ddaily.co.kr/news/news_view.php?uid=78924  

2011-06-09

- Press date : June 3, 2011 - Press Media : Moneytoday - Original article : http://www.mt.co.kr/view/mtview.php?type=1&no=2011060309564203018&outlink=1

2011-06-03

- Press date : May 30, 2011 - Press Media : Newsis - Original article : http://www.newsis.com/article/view.htm?cID=&ar_id=NISX20110530_0008332719  

2011-05-30

- Press date : May 9, 2011 - Press Media : Digital Times - Original article : http://www.dt.co.kr/contents.html?article_no=2011050902011132745003  

2011-05-09

- Press date : May 9, 2011 - Press Media : Digital Times - Original article : http://www.dt.co.kr/contents.html?article_no=2011050902011132745005  

2011-05-09

- Press date : May 9, 2011 - Press Media : Digital Times - Original article : http://www.dt.co.kr/contents.html?article_no=2011050902011132745002

2011-05-09

- Press date : April 13, 2011 - Press Media : ETNEWS - Original article : http://www.etnews.co.kr/201104120127

2011-04-13