| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2003 | 978-0-9546408-0-4 | David Mason | Understand Phrasal Verbs: A Complete Self-Study course for Intermediate to Advanced Learners of English ELT |
| 2004 | 978-0-9546408-1-1 | CUARENTA ERRORES MAS COMUNES EN INGLES LOS UN LIBRO DE AUTOAPRENDIZAJE PARA ESTUDIANTES DE NIVEL INTERMEDIO | |