http://itpro.nikkeibp.co.jp/article/NEWS/20051031/223729/

http://booklog.kinokuniya.co.jp/london/archives/2008/12/post_24.html

http://www.drakahige.com/NEWS/DAILY/2008/2008121501.shtml

http://news.goo.ne.jp/article/diamond/life/2008121402-diamond.html?fr=rk

http://gigazine.net/index.php?/news/comments/20081215_sugar_addict/

http://gigazine.net/index.php?/news/comments/20081215_japanese_tastes_the_best/

http://www.yuhikaku.co.jp/books/detail/9784641114944

http://mainichi.jp/select/jiken/news/20081216ddm041040149000c.html

http://headlines.yahoo.co.jp/hl?a=20081215-00000029-yom-soci

http://headlines.yahoo.co.jp/hl?a=20081216-00000002-khk-soci

http://headlines.yahoo.co.jp/hl?a=20081216-00000122-jij-soci