http://internet.watch.impress.co.jp/cda/news/2005/07/28/8605.html

http://www.nikkei.co.jp/news/main/20050730AT3K3000430072005.html

http://city.hokkai.or.jp/~atsuyo/haha1.html

http://allabout.co.jp/game/playstation/closeup/CU20050729A/index.htm

http://www.dengekionline.com/data/news/2005/07/29/8be3de0c476ece858313ecccc16967c8.html

http://www.dengekionline.com/data/news/2005/07/30/05c3f1048a837ae36494b3406ab0d58e.html

http://www.dengekionline.com/data/news/2005/07/29/26c05ebf2db9c7cd20b178d33991fe61.html