D. P. · S D · S P · Swida Dagmara
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Basic English for Business 1-ksiazka z plyta CD | 978-83-7561-090-1 (83-7561-090-9) | 2010 |
| Basic English for Business 2 -ksiazka z plyta CD | 978-83-7561-094-9 (83-7561-094-1) | 2010 |
| Basic English for Business 3 -ksiazka z plyta CD | 978-83-7561-098-7 (83-7561-098-4) | 2010 |