| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Gurobisu emubie jigyo senryaku. | 978-4-478-02338-9 (4-478-02338-7) | 2013 | Hiroji Aiba |
| Gurobisu emubie kuritikaru shinkingu. | 978-4-478-02058-6 (4-478-02058-2) | 2012 | |
D D · G D · G. K. · Gurobisu keiei daigakuin. · K. D.