| year of publication | ISBN | author(s) | title |
|---|
| 2002 | 978-1-931850-00-1 | Educational Services Corp. | Arabic (Language 30) |
| '' | 978-1-931850-01-8 | Not Available | Chinese Mandarin: Audio Cd Course (Language 30) (Chinese Edition) |
| '' | 978-1-931850-02-5 | French (Language 30) |
| '' | 978-1-931850-05-6 | Italian (Language 30) |
| '' | 978-1-931850-06-3 | Japanese: Audio Cd Course (Language 30) (Japanese Edition) |
| 2002 | 978-1-931850-07-0 | Not Available | Korean: Audio Cd Course (Language 30) (Korean Edition) |
| '' | 978-1-931850-08-7 | Russian (Language 30) |
| '' | 978-1-931850-09-4 | Not Available | Spanish (Language 30) |
| '' | 978-1-931850-10-0 | '' | Tagalog Pilipino: Audio CD Course (Language 30) |
| '' | 978-1-931850-11-7 | '' | Vietnamese: Audio Cd Course (Language 30) (Vietnamese Edition) |
| 2004 | 978-1-931850-12-4 | Educational Services | Thai: Start Speaking Today (LANGUAGE/30) (Thai Edition) |
| 2014 | 978-1-931850-56-8 | Language/30 | El Inglés Práctico - English for Spanish Speakers (2CDs/Book) (Spanish Edition) |