Antzeko izenburuak: Communicating Effectively In English :
- New Headway : Advanced Student's Book /
- The Most Common Mistakes in English Usage.
- A Practical English Grammar /
- The most common mistakes in english pronunciation /
- Cambridge IELTS 4 : Examination Papers From University Of Cambridge ESOL Examinations : English For Speakers Of Other Languages /
- Cambridge IELTS 5 : Examination Papers From University Of Cambridge ESOL Examinations : English For Speakers Of Other Languages /