Gaya APA
Fluency In English. (1984).
Jakarta:
Yayasan Kanisius.
Gaya Chicago
Fluency In English.
.
Jakarta:
Yayasan Kanisius,
1984.
.
Gaya MLA
Fluency In English.
.
Jakarta:
Yayasan Kanisius,
1984.
.
Gaya Turabian
Fluency In English.
Jakarta:
Yayasan Kanisius,
1984.
.