平凡社 (heibonsha) · 彩流社 (sairyuusha)
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Flags of Former Colonies & Overseas Territories of the Great Powers: Flags Across Through the 500 Years World History | 978-4-7791-1364-2 (4-7791-1364-4) | 2009 |
| Kodomo sekai kokki zukan | 978-4-582-40736-5 (4-582-40736-6) | 2009 |