| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Two thousand year history of mercenary ISBN: 4061495879 | 978-4-O6-149587-6 (4-O6-149587-9) | 2002 |
Yasuo Kawaguchi · Yoko Kawaguchi · Yoshie Kawazaki · Yuji Kawaguchi · Yuji Kawasaki · Yuji Kosaka · Yuki Kakiichi · Yuko Kikuchi · Yuuki Kousaka