كتب مهمه
http://www.4shared.com/file/127308215/6dc9c641/Dictionary_of_Troublesome_Words.html
و
Dorking Dictionary of English Idioms
http://www.4shared.com/file/127522731/9d7df228/Dorking_Dictionary_of_English_Idioms.html
Grammar Charts and Explanations
http://www.4shared.com/file/115763725/9aef7114/charts_explanations_grammar.html?s=1