Gaya APA
ABRAMS, S.
(1992).
Spectrum A Communicative Course in English Workbook 1 A
.
NEW JERSEY:
Prentice Hall.
Gaya MLA
ABRAMS, SHARON.
"Spectrum A Communicative Course in English Workbook 1 A".
NEW JERSEY:
Prentice Hall,
1992.
Text.