C L · Czarnecki Leszek S. · Leszek Czarnecki
| title | ISBN-13 | year of publication |
|---|---|---|
| Biznes po prostu | 978-83-62304-07-3 | 2011 |
| Biznes po prostu. Nastepny krok | 978-83-7758-272-5 | 2012 |
| Ryzyko w dzialalnosci bankowej | 978-83-62304-13-4 | 2011 |
| Simply Business. The Next Step | 978-83-7758-276-3 | 2012 |