Gaya APA
English for International Tourism. (2003).
Essex:
Longman.
Gaya Chicago
English for International Tourism.
Cet. 1.
Essex:
Longman,
2003.
.
Gaya MLA
English for International Tourism.
Cet. 1.
Essex:
Longman,
2003.
.
Gaya Turabian
English for International Tourism.
Essex:
Longman,
2003.
.