| title | ISBN-13 | year of publication |
|---|---|---|
| English Explorer 1 Workbook with 2 CD | 978-83-7409-683-6 | 2014 |
| English Explorer 2 Workbook with CD | 978-83-7409-699-7 | 2013 |
| English Explorer 3 Workbook with 3 CD | 978-83-7409-863-2 | 2010 |
| English Explorer 4 Workbook with CD | 978-83-7409-864-9 | 2011 |
A. H. · A. S. · A.S.H. · A. Stephenson · S H · Stephenson H. · T.A. · T.H. · T.S. · T. Stephenson