S.Y. ยท Yoshio Sawai
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Bobobo-bo Bo-bobo Vol.3 | 978-2-203-00746-8 (2-203-00746-X) | 2007 |
| Bobobo-bo Bo-bobo Vol.7 | 978-2-203-01326-1 (2-203-01326-5) | 2008 |
| Bobobo-bo Bo-bobo Vol.14 | 978-2-203-02238-6 (2-203-02238-8) | 2010 |