Gaya APA
Weir, C, J.
(1990).
COMMUNICATIVE LANGUAGE TESTING
(
EDISI 1)
.
London:
Prentice Hall International.
Gaya MLA
Weir, Cyril, J..
"COMMUNICATIVE LANGUAGE TESTING".
EDISI 1
London:
Prentice Hall International,
1990.
Art Original.