USA
Educational Testing Service
2003
Aspinall, Tricia
România
2002
Newbrook, Jacky
Anglia
Pearson Education Limited
Peterson 's
Thomson Learning. Arco
2001
2007
Mihai, Florin, prof.
Polirom
[S.l.]
Pearson Education North Asia Limited
China
Addison-Wesley Longman
1998
MacAndrew, Richard
Great Britain
Oxford University Press
Gude, Kathy
2008
Harrison, Mark
Burgess, Sally
England
Barnes, Jane
2005
2004