Gaya APA
Harmer, Jeremy. (1991).
The practice of english language teaching .
London:
Longman.
Gaya Chicago
Harmer, Jeremy.
The practice of english language teaching.
London:
Longman,
1991.
Text.
Gaya MLA
Harmer, Jeremy.
The practice of english language teaching.
London:
Longman,
1991.
Text.
Gaya Turabian
Harmer, Jeremy.
The practice of english language teaching.
London:
Longman,
1991.
Print.