Gaya APA
Fluency in English. (1988).
Yogyakarta:
Yayasan Kanisius.
Gaya Chicago
Fluency in English.
.
Yogyakarta:
Yayasan Kanisius,
1988.
Text.
Gaya MLA
Fluency in English.
.
Yogyakarta:
Yayasan Kanisius,
1988.
Text.
Gaya Turabian
Fluency in English.
Yogyakarta:
Yayasan Kanisius,
1988.
Print.