http://www.chugoku-np.co.jp/News/Tn201306250121.html

http://news.goo.ne.jp/article/jbpress/business/jbpress-38021.html

http://www.gov-online.go.jp/useful/article/201306/4.html

http://headlines.yahoo.co.jp/hl?a=20130625-00000569-san-soci

http://www.sponichi.co.jp/society/news/2013/06/26/kiji/K20130626006089410.html

http://www.hokkaido-np.co.jp/news/editorial/474874.html

http://headlines.yahoo.co.jp/hl?a=20130625-00010014-minyu-l07

http://www.asahi.com/national/update/0625/OSK201306250013.html