Ibbotson, Mark
Cambridge English for engineering
Cambridge University Press, 2008
 Multimedia
Peters, Pam
The Cambridge guide to English usage
Cambridge University Press, 2006
 Buku Referensi
Ceramella, Nick
Cambridge English for the media
Cambridge University Press, 2008
 Multimedia
Downes, Colm
Cambridge english for job hunting
Cambridge university press, 2009
 Buku Teks
Ceramella, Nick
Cambridge English for the media
Cambridge university press, 2011
 Buku Teks