| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Kureyon shinchan no kanji omoshiro kuizu bukku. | 978-4-575-29819-2 (4-575-29819-0) | 2005 | |
| ?????????????四字熟語辞典 (??????????????百科????) ?????????????yojijukugojiten (??????????????hyakka????) | 978-4-575-29970-0 (4-575-29970-7) | 2007 | Yoshito Usui · Naosumi Eguchi |