| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Kodansha's Hiragana Workbook: A Step-by-Step Approach to Basic Japanese Writing | 978-4-7700-3081-8 (4-7700-3081-9) | 2008 | Anne Matsumoto Stewart |
| Kodansha's Katakana Workbook: A Step-by-Step Approach to Basic Japanese Writing | 978-4-7700-3082-5 (4-7700-3082-7) | 2008 | " |