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- http://www.nikkeibp.co.jp/style/life/money/savvy/070219_fujisawa1/
- http://www.nikkeibp.co.jp/style/biz/skillup/presen2/070219_presen02/
- http://www.nikkeibp.co.jp/style/biz/person/epoch/070214_kai1/
- http://www.nikkeibp.co.jp/style/biz/skillup/think_active/070215_3rd/
- http://news.livedoor.com/article/detail/3035641/
- http://business.nikkeibp.co.jp/article/skillup/20070213/118854/
- http://business.nikkeibp.co.jp/article/manage/20070216/119264/