1. Financial Supervisory Service. “Data Analysis, Retrieval and Transfer System.” http://dart.fss.or.kr
2. The Chosun Ilbo. April 27 2011. http://biz.chosun.com/site/data/html_dir/2011/04/27/2011042700166.html
3. The Dong-A Ilbo. October 9 2014. http://news.donga.com/3/all/20141008/67042114/1
4. The Korean Financial Times. March 27 2014. http://www.fntimes.com/paper/view.aspx?num=131629
5. Song, M. 2011. “KIS Credit Monitor: 4–16.” http://www.kisrating.com/search.do