| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Business English Business communication + CD | 978-83-60199-50-3 (83-60199-50-7) | 2008 |
| Business english Marketing and advertising + CD | 978-83-60199-49-7 (83-60199-49-3) | 2008 |
| Business english Starting a company + CD | 978-83-60199-47-3 (83-60199-47-7) | 2008 |