English in Mind 1 Audio CD
Puchta, Herbert ua

Die Fundgrube für den handlungsorie
Beyer-Kessling, Viola

Act It Out
Knight, Michael

Situational Grammar Practice

Focus Extra Practice
Deane, Neal

So spricht der Amerikaner
Langenscheidt

Spotlight on the USA
Falk, Randee

Testing Material
Focus on Modern Business 2

Muret- Sanders English - German
Langenscheidt's

Business,Opportunities Workbook
Hollett, Vicki