| title | ISBN-13 | year of publication |
|---|---|---|
| ALL IN ONE | 978-4-947747-16-7 | 2007 |
| ALL IN ONE Re-Start | 978-4-947747-17-4 | 2007 |
| 30語「超発想」英会話 30go「chou/ | 978-4-947747-08-2 | 2004 |
| English EX―Grammar & Usage | 978-4-947747-20-4 | 2009 |
| Word Up!―Advanced Learner’s Wordbook | 978-4-523-26269-5 | 1997 |