Gaya APA
Grammar : step by step. (1993).
Jakarta:
Binarupa Aksara.
Gaya Chicago
Grammar : step by step.
.
Jakarta:
Binarupa Aksara,
1993.
Text.
Gaya MLA
Grammar : step by step.
.
Jakarta:
Binarupa Aksara,
1993.
Text.
Gaya Turabian
Grammar : step by step.
Jakarta:
Binarupa Aksara,
1993.
Print.