| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Dwa miesiace z hiszpanskim | 978-83-7476-383-7 (83-7476-383-3) | 2010 | Joanna Koprek |
| Wloski w 4 tygodnie | 978-83-7141-790-0 (83-7141-790-X) | 2008 | |
| Wloski w 4 tygodnie Etap 2 | 978-83-7141-521-0 (83-7141-521-4) | ||