| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Japanese for Busy People I: Kana Version; includes CD | 978-4-7700-3009-2 (4-7700-3009-6) | 2007 |
| Japanese for Busy People I: Romanized Version; includes CD | 978-4-7700-3008-5 (4-7700-3008-8) | 2007 |
| Japanese for Busy People I: Workbook; includes CD | 978-4-7700-3034-4 (4-7700-3034-7) | 2006 |