A Practical English Grammar
Thomson, A.J./ Martinet A.V.

English Grammar in Use
Murphy

For Foreign Studentss

Increase your wordpower key
Woxbrandt / Kunze

English Pronouns
Popko, Ulrich

Language Reference for Business Enh
Brieger/Comfort

Advanced Grammar in Use
Hewings, Martin

Smile IV
Lichtenwagner, Claudia

The New Cambridge English Course
Swan, Michael

Harrap's Easy English Dictionary
Pons