Gaya APA
Alter, Jason. (1991).
Primary english skills 1 .
Jakarta:
Binarupa Aksara
.
Gaya Chicago
Alter, Jason.
Primary english skills 1.
Jakarta:
Binarupa Aksara
,
1991.
Text.
Gaya MLA
Alter, Jason.
Primary english skills 1.
Jakarta:
Binarupa Aksara
,
1991.
Text.
Gaya Turabian
Alter, Jason.
Primary english skills 1.
Jakarta:
Binarupa Aksara
,
1991.
Print.