Gaya APA
Harrison, Louis. (2013).
Achieve IELTS 2 .
London:
Cengage Learning, Inc.
Gaya Chicago
Harrison, Louis.
Achieve IELTS 2.
London:
Cengage Learning, Inc,
2013.
Teacher Resource.
Gaya MLA
Harrison, Louis.
Achieve IELTS 2.
London:
Cengage Learning, Inc,
2013.
Teacher Resource.
Gaya Turabian
Harrison, Louis.
Achieve IELTS 2.
London:
Cengage Learning, Inc,
2013.
Teacher Resource.