Gaya APA
Maris, Amanda. (2008).
Challenges: workbook 3 .
malaysia:
Pearson Education.
Gaya Chicago
Maris, Amanda.
Challenges: workbook 3.
malaysia:
Pearson Education,
2008.
Text.
Gaya MLA
Maris, Amanda.
Challenges: workbook 3.
malaysia:
Pearson Education,
2008.
Text.
Gaya Turabian
Maris, Amanda.
Challenges: workbook 3.
malaysia:
Pearson Education,
2008.
Print.