Gaya APA
LINGUAPHONE ENGLISH COURSE (Written Exercises). (1989).
Inggris:
Linguaphone Institute Limited.
Gaya Chicago
LINGUAPHONE ENGLISH COURSE (Written Exercises).
.
Inggris:
Linguaphone Institute Limited,
1989.
Text.
Gaya MLA
LINGUAPHONE ENGLISH COURSE (Written Exercises).
.
Inggris:
Linguaphone Institute Limited,
1989.
Text.
Gaya Turabian
LINGUAPHONE ENGLISH COURSE (Written Exercises).
Inggris:
Linguaphone Institute Limited,
1989.
Print.