| title | ISBN-13 | year of publication |
|---|---|---|
| Espanol para la comunicacion eficaz 1/ Spanish for effective communication 1 | 978-607-17-0220-3 | 2009 |
| Espanol para la comunicacion eficaz 2 / Spanish for effective communication | 978-607-17-0566-2 | 2010 |
| Espanol para la comunicacion eficaz / Spanish for effective communication: Practicas | 978-607-17-0396-5 | 2010 |
| Espanol para la comunicacion eficaz / Spanish for Effective Communication: Practicas / Practices | 978-607-17-0565-5 | 2010 |