→http://www.watch.impress.co.jp/game/docs/20071010/ninc.htm
→http://www.watch.impress.co.jp/game/docs/20071010/ninp.htm
→http://www.watch.impress.co.jp/game/docs/20071010/niss1.htm
→http://www.watch.impress.co.jp/game/docs/20071010/niss2.htm
→http://plusd.itmedia.co.jp/games/articles/0710/10/news119.html
→http://plusd.itmedia.co.jp/games/articles/0710/11/news055.html