| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Hoppo ryodo "tokumei kosho" | 978-4-06-213666-2 (4-06-213666-X) | 2006 | Masaru Sato |
| Sekai ga kawaru, Nihon ga kawaru: Kore kara no Nihon gaikō to kokusai kōken o kangaeru | 978-4-06-205858-2 (4-06-205858-8) | 1992 | |