http://www.forest.impress.co.jp/article/2009/03/31/liveclick.html

http://wiredvision.jp/news/200904/2009040123.html

http://booklog.kinokuniya.co.jp/katsuta/archives/2009/03/post_21.html

http://www.sanspo.com/shakai/news/090402/sha0904020506009-n1.htm

http://www.gizmodo.jp/2009/04/post_5325.html

http://www.drakahige.com/NEWS/DAILY/2009/2009033004.shtml

http://www.excite.co.jp/News/odd/E1238565893137.html

http://www.koubundou.co.jp/books/pages/35435.html

http://headlines.yahoo.co.jp/hl?a=20090402-00000017-mai-soci ＊関連：不況の波は受刑者にも…刑務作業が激減 http://headlines.yahoo.co.jp/hl?a=20090401-00000616-san-soci

http://www.nagasaki-np.co.jp/f24/CN20090401/na2009040101000525.shtml

http://news.goo.ne.jp/article/nishinippon/region/20090401_local_N_004-nnp.html

http://www.e-hoki.com/affairs/341.html?hb=1