Hopkins, Diane
Cambridge grammar for IELTS.
Cambridge University Press, 2006
 Multimedia
Timberlake, Alan
A reference grammar of Russian
Cambridge University Press, 2004
 Buku Teks SO
A reference grammar of Chinese
Chu-Ren Huang, Dingxu Shi, editors
Cambridge University Press, 2016
 Buku Teks SO
Murphy, Raymond
English grammar in use : a reference and practice book for intermediate students / Raymond Murphy
Cambridge University Press, 1998
 Buku Teks SO
Hewings, Martin
Advanced grammar in use : a reference and practice book for advanced students of english
Cambridge University Press, 2005
 Buku Teks SO