Gaya APA
HARRIS, Michael .Dkk. (2004).
Opportunities 2 : students' book .
Malaysia:
Longman.
Gaya Chicago
HARRIS, Michael .Dkk.
Opportunities 2 : students' book.
Malaysia:
Longman,
2004.
Text.
Gaya MLA
HARRIS, Michael .Dkk.
Opportunities 2 : students' book.
Malaysia:
Longman,
2004.
Text.
Gaya Turabian
HARRIS, Michael .Dkk.
Opportunities 2 : students' book.
Malaysia:
Longman,
2004.
Print.