Kruse, Benedict
Instrumental English English for the travel industry
McGraw-Hill, 1982
 Buku Teks SO
Rangkuti-Hasibuan, Sofia
English for specific purposes : tourism. Indonesian socio-cultural life and travel
Dian Rakyat, 1992
 Buku Teks
Tomasowa, Francien Herlen
English for non-english departements
Universitas Brawijaya , 2005
 Buku Teks SO
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