| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| TOEFL tesuto 250ten kanzen koryaku bunpo | 978-4-7574-0415-1 (4-7574-0415-8) | 2000 | |
| TOEIC 600 = Whole New TOEIC Test 600 Practice Exam Questions | 978-4-7574-1216-3 (4-7574-1216-9) | 2010 | Braven Smillie |