Gaya APA
Gower, Roger. (2002).
Grammar in practice 1 (1).
UK:
Cambridge University Press.
Gaya Chicago
Gower, Roger.
Grammar in practice 1.
1
UK:
Cambridge University Press,
2002.
Buku.
Gaya MLA
Gower, Roger.
Grammar in practice 1.
1
UK:
Cambridge University Press,
2002.
Buku.
Gaya Turabian
Gower, Roger.
Grammar in practice 1.
1
UK:
Cambridge University Press,
2002.
Buku.