| title | ISBN-13 | year of publication |
|---|---|---|
| English for Negotiating | 978-0-13-279472-5 | 1990 |
| Foundation Skills: Speaking Bk. 2 | 978-0-304-31316-7 | 1986 |
| Foundation Skills: Speaking Bk.2 | 978-0-304-31324-2 | 1986 |
| Foundation Skills: Speaking Bk. 3 | 978-0-304-31317-4 | 1986 |
| Foundation Skills: Speaking Bk.3 | 978-0-304-31318-1 | 1986 |
| Foundation Skills: Speaking Bk. 4 | 978-0-304-31319-8 | 1988 |
| Foundation Skills: Speaking Bk.4 | 978-0-304-31320-4 | 1988 |