Beata Ostrowicka · Beate Ostermann · Ostrowska Beata
| title | ISBN-13 | year of publication |
|---|---|---|
| Twoja matura Chemia 2002 | 978-83-7415-016-3 | 2001 |
| Twoja matura Chemia 2002 | 978-83-88742-12-5 | |
| Twoja matura Chemia | 978-83-7415-091-0 | 2009 |
| Twoja matura Chemia testy poziom rozszerzony | 978-83-7415-152-8 | 2009 |