廣済堂出版 (kousaidoushuppan) · 明日香出版社 (asukashuppansha)
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Atarimae dakedo nakanaka dekinai shigoto no ruru | 978-4-7569-0880-3 (4-7569-0880-2) | 2005 | |
| Riaru kesu ni manabu kanzen amerika kigyo manyuaru | 978-4-331-51162-6 (4-331-51162-6) | 2006 | |
| There is a secret law of 77 career employees continue to be chosen in! Early ISBN: 4883384187 | 978-4-88338-418-1 (4-88338-418-7) | 2009 | Katsunari Sawada |