| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Imiron. 2 | 978-4-87424-161-5 (4-87424-161-1) | 1998 | Takashi Sugimoto |
| Rangeji fairu: Eigogaku gairon. | 978-4-327-41055-1 (4-327-41055-1) | 1999 | Hisao Kakei · Makoto Shimamura · Ohaio Shuritsu Daigaku. |