Fard Johnson · Ford Johnson · Fred Johnsen · Jensen Frode
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Jensen's Grammar: Your One Stop Source for Learning Grammar: Text and Exercises | 978-1-886061-28-6 (1-886061-28-9) | 2001 |
| Jensen's Vocabulary: The Easy Way to a Great Vocabulary | 978-1-886061-27-9 (1-886061-27-0) | 2001 |