Eastwood, John
English for travel
Oxford University Press, 1994
 Buku Teks
Tomasowa, Francien Herlen
English for management
Universitas Brawijaya, 2005
 Buku Teks SO
Scobie, Janet I.
English for the certificate
George Allen and Unwin, 1959
 Buku Teks SO
Howard, Godfrey
The good English guide: English usage in the 1990
Pan Macmillan Publishers, 1993
 Buku Referensi
Puchta, Herbert
English in mind
Cambridge University Press, 2010
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