| 978-950-99488-8-4 | You! | Dale Editores | Efraín Davis
Jorge Lewis
| 1993 |
| 978-987-9495-94-0 | English for glaobel comunication II | Universidad Nacional de La Matanza | Efraín Davis
| 2009 |
| 978-987-9495-91-9 | English for glaobel comunication I | Universidad Nacional de La Matanza | Efraín Davis
| 2009 |
| 978-987-9039-12-0 | How to tackle electronics texts in english | D.L. Books | Efraín Davis
| 1996 |
| 978-987-9039-11-3 | How to tackle electronics texts in english | D.L. Books | Efraín Davis
| 1996 |
| 978-987-9039-10-6 | How to tackle electronics texts in english | D.L. Books | Efraín Davis
| 1996 |
| 978-987-9039-09-0 | How to tackle computer texts in english 2 | D.L. Books | Efraín Davis
| 1996 |
| 978-987-9039-08-3 | How to tackle computer texts in english 1 | D.L. Books | Efraín Davis
| 1996 |
| 978-987-558-093-0 | Problemas de enseñanza de la lengua extranjera | Universidad Nacional de Quilmes | Claudia Mónica Ferradás
Daniela Forquera
Efraín Davis
Laura Renart
| 2001 |
| 978-987-1782-61-1 | Estrategias de enseñanza de la lengua extranjera | Universidad Virtual de Quilmes | Ana Traversa
Claudia Ferradas Moi
Cristina Thomson de Grondona White
Efraín Davis
Laura Renart
| 2001 |
| 978-987-1782-48-2 | Problemas de lingüística contemporánea | Universidad Virtual de Quilmes | Efraín Davis
Viviana Iturburu
| 2001 |
| 978-950-9467-07-1 | Let's know each other | Miño y Dávila | Efraín Davis
Jorge Ricardo Lewis
| 1988 |
| 978-950-99488-7-7 | English at work | Dale Editores | Efraín Davis
| 1993 |
| 978-950-99488-6-0 | English at work | Dale Editores | Efraín Davis
| 1993 |
| 978-950-99488-5-3 | You! | Dale Editores | Efraín Davis
Jorge Lewis
| 1993 |
| 978-950-99488-4-6 | Let's know each other | Dale Editores | Efraín Davis
Jorge Lewis
| 1992 |
| 978-950-99488-3-9 | English at work | Dale Editores | Efraín Davis
| 1992 |
| 978-950-99488-2-2 | English at work | Dale Editores | Efraín Davis
| 1992 |
| 978-950-99488-1-5 | English at work | Dale Editores | Efraín Davis
| 1990 |
| 978-950-99488-0-8 | English at work | Dale Editores | Efraín Davis
| 1990 |
| 978-950-9467-11-8 | Let's know each other | Miño y Dávila | Efraín Davis
Jorge Ricardo Lewis
| 1989 |
| 978-950-9467-08-8 | Let's Know each other | Miño y Dávila | Efraín Davis
Jorge Ricardo Lewis
| 1988 |