Kruse, Benedict
Instrumental English English for the travel industry
McGraw-Hill, 1982
 Buku Teks
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
Tomasowa, Francien Herlen
English for management
Universitas Brawijaya, 2005
 Buku Teks
Scobie, Janet I.
English for the certificate
George Allen and Unwin, 1959
 Buku Teks