Gaya APA
Harmer, Jeremy. (2012).
Essential Teacher Knowledge: core concepts in English Language Teaching .
England:
Pearson Educational Limited.
Gaya Chicago
Harmer, Jeremy.
Essential Teacher Knowledge: core concepts in English Language Teaching.
England:
Pearson Educational Limited,
2012.
Buku English.
Gaya MLA
Harmer, Jeremy.
Essential Teacher Knowledge: core concepts in English Language Teaching.
England:
Pearson Educational Limited,
2012.
Buku English.
Gaya Turabian
Harmer, Jeremy.
Essential Teacher Knowledge: core concepts in English Language Teaching.
England:
Pearson Educational Limited,
2012.
Buku English.