Gaya APA
Speaking Language Teaching. (1987).
Oxford:
Oxford University Press.
Gaya Chicago
Speaking Language Teaching.
.
Oxford:
Oxford University Press,
1987.
Buku.
Gaya MLA
Speaking Language Teaching.
.
Oxford:
Oxford University Press,
1987.
Buku.
Gaya Turabian
Speaking Language Teaching.
Oxford:
Oxford University Press,
1987.
Buku.