Gaya APA
Essential Grammar In Use. (1990).
:
Cambridge University Press.
Gaya Chicago
Essential Grammar In Use.
.
:
Cambridge University Press,
1990.
.
Gaya MLA
Essential Grammar In Use.
.
:
Cambridge University Press,
1990.
.
Gaya Turabian
Essential Grammar In Use.
:
Cambridge University Press,
1990.
.