(http://sankei.jp.msn.com/economy/business/080421/biz0804211624006-n1.htm)

(http://mainichi.jp/enta/mantan/news/20080420mog00m200123000c.html)

(http://www.muhyojo.com/publisher/Syueisya/Weekly-Boys-Jump-0804-21/#T-1)

(http://www.animecenter.jp/jp/200803/21170457.php)