Gaya APA
dkk, Y, S, B.
(1995).
DEVELOPING COMMUNICATIVE SKILLS 1A
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Jakarta:
Balai Pustaka Jakarta.
Gaya MLA
dkk, Y., Suharno,, B.A.,.
"DEVELOPING COMMUNICATIVE SKILLS 1A".
Jakarta:
Balai Pustaka Jakarta,
1995.
Text.