| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| ズバリひとこと！ とっさの英会話CD－BOOK zubarihitokoto！ tossanoeikaiwaCD－BOOK | 978-4-07-283311-7 (4-07-283311-8) | 2012 |
| ネイティブに一発で通じる英単語はこっち―クイズでわかる！似たもの単語の使い分け325 neiteibuniippatsudetsuujirueitangohakotchi―kuizudewakaru！ni/ | 978-4-07-274370-6 (4-07-274370-4) | 2010 |