Gaya APA
Longman Advanced American Dictionary. (2007).
england:
pearson longman.
Gaya Chicago
Longman Advanced American Dictionary.
Ed. 2.
england:
pearson longman,
2007.
Text.
Gaya MLA
Longman Advanced American Dictionary.
Ed. 2.
england:
pearson longman,
2007.
Text.
Gaya Turabian
Longman Advanced American Dictionary.
england:
pearson longman,
2007.
Print.