| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Reading Comprehension & Vocabulary Development Series Workbook 3.3-3.7 | 978-0-931334-59-7 (0-931334-59-4) | 2010 |
| Reading Comprehension & Vocabulary Development Series Workbook 4.3-4.7 | 978-0-931334-53-5 (0-931334-53-5) | 2010 |