Hyla Marek ยท M. H.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Przewodnik po e-learningu | 978-83-264-4005-2 (83-264-4005-1) | 2013 |
| Przewodnik po e-learningu | 978-83-7526-697-9 (83-7526-697-3) | 2009 |
| Przewodnik po e-learningu + CD | 978-83-7526-035-9 (83-7526-035-5) | 2007 |