Gaya APA
Simplified english grammar. (2007).
Jakarta:
Kesaint Blanc.
Gaya Chicago
Simplified english grammar.
.
Jakarta:
Kesaint Blanc,
2007.
Text.
Gaya MLA
Simplified english grammar.
.
Jakarta:
Kesaint Blanc,
2007.
Text.
Gaya Turabian
Simplified english grammar.
Jakarta:
Kesaint Blanc,
2007.
Print.