Schul- und Sprachenglossar

Diplomas de Español como Lengua Extranjera

Diplôme d’études de langue francaise / Diplôme approfondi de langue francaise

English For Business

Gemeinsamer Europäischer Referenzrahmen des Europarats 

International English Language Testing System

London Chamber of Commerce and Industry

Spoken English For Industry and Commerce

Test of English as a Foreign Language