- Press date : January 4, 2010 - Press Media : Donga Economy - Original article : http://economy.donga.com/total/3/01/20100104/25179842/1

2010-01-04

- Press date : 14 October, 2009 - Press Media : ETNEWS - Original article : http://www.etnews.co.kr/news/detail.html?id=200910130199

2009-10-14

- Press date : 24 September, 2009 - Press Media : ETNEWS - Original article : http://www.etnews.co.kr/news/detail.html?id=200909230181

2009-09-24

- Press date : 2 September, 2009 - Press Media : Korea Joongang Daily - Original article : http://news.joins.com/article/3756167  

2009-09-02

- Press date : 22 July, 2009 - Press Media : Korea Joongang Daily - Original article : https://news.joins.com/article/3695852

2009-07-22

- Press date : 23 June, 2009 - Press Media : INCHEONNEWS - Original article : http://www.incheonnews.com/news/articleView.html?idxno=29245  

2009-06-23

  - Press date : April 1, 2009 - Press Media : ETNEWS - Original article : http://www.etnews.co.kr/news/detail.html?id=200903310172  

2009-04-01