| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 250 Essential Japanese Kanji Characters | 978-4-8053-0946-9 (4-8053-0946-6) | 2008 | Kanji Text Research Group Univ of Tokyo |
| 250 Essential Japanese Kanji Characters | 978-4-8053-0947-6 (4-8053-0947-4) | 2008 | |