Gaya APA
Dean, Michael. (2003).
OPPORTUNITIES 1: LANGUAGE POWERBOOK .
Inggris:
Pearson Education.
Gaya Chicago
Dean, Michael.
OPPORTUNITIES 1: LANGUAGE POWERBOOK.
Inggris:
Pearson Education,
2003.
Text.
Gaya MLA
Dean, Michael.
OPPORTUNITIES 1: LANGUAGE POWERBOOK.
Inggris:
Pearson Education,
2003.
Text.
Gaya Turabian
Dean, Michael.
OPPORTUNITIES 1: LANGUAGE POWERBOOK.
Inggris:
Pearson Education,
2003.
Print.