http://booklog.kinokuniya.co.jp/abe/archives/2009/09/post_48.html

http://www.asahi.com/science/update/0919/OSK200909190076.html

http://gigazine.net/index.php?/news/comments/20090920_mc_gangs/ (参考)その暴走族達が集会をしている所に入った強盗の顛末 http://gigazine.net/index.php?/news/comments/20081207_biker_rampage/

http://www.chosunonline.com/news/20090921000051

http://slashdot.jp/articles/09/09/21/0440235.shtml

http://www.asahi.com/edu/news/TKY200909210120.html

http://www.asahi.com/national/update/0922/OSK200909210099.html

http://www.chugoku-np.co.jp/News/Sp200909210233.html

http://headlines.yahoo.co.jp/hl?a=20090922-00000056-san-soci