| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Japanese for Busy People | 978-4-7700-1882-3 | 1993 | Kodansha |
| Japanese for Busy People II | 978-4-7700-1884-7 | 1995 | " |
| JAPANESE FOR YOUNG PEOPLE 1 | 978-4-7700-2180-9 | 1999 | Kokusai Nihongo Fuky U Ky Okai |
| Reading Japanese Financial Newspapers | 978-4-7700-2472-5 | 1999 | |
| コミュニケーションのための日本語 III ローマ字版テキスト -Japanese for Busy People III Romanized Version komyunikeーshonnotamenonihongo/ | 978-4-7700-1886-1 | 1996 | 国際日本語普及協会 |