Longman business English usage. /
The Oxford English-Arabic dictionary of current usage. /
Deskbook of correct English. : A dictionary of spelling, punctuation, grammar and usage. /
Writing, grammar, and usage. /
Test your grammar and usage. : Cambridge first certificate. /
English perfekt! /
Absorbing English. /
Essential English. /
English for professional communication. /
Harrap "Drive-in" English. Part 1., Guidebook.
Harrap "Drive-in" English. Part 2., Guidebook.
English for Cambridge proficiency. /
English pronunciation illustrated. /
Improve your English. /
Realistic English 2. /
Realistic English 3. /
Realistic English 1. /
Structural essentials of English. /
Fluency in English. : An integrated course for advanced students. /