The New Cambridge English Course 2
Swan, Michael/Walter, Catherine

Essential Grammar in Use
Murphy

Testbuch
Durchstarten Englisch

Education in Britain and America
Stenzel, Elke u.a.

The Art of Teaching English
Morris

Business Opportunities-Teacher`
Hollett, Vicki

English in Mind Teacher' Resource 3
Ackroyd, Sarah/McKeegan David

Dictionary of New English 1963-1972
Barnhart

Basic Business Role Plays
Kerridge, David

Handbuch der englischen Wirtschafte
Langenscheidt