Gaya APA
Astuti, E, M.
(2006).
ENGLISH ZONE 2 : for Senior High School Students Year XI
.
Jakarta:
Penerbit Erlangga.
Gaya MLA
Astuti, Eka, Mulya.
"ENGLISH ZONE 2 : for Senior High School Students Year XI".
Jakarta:
Penerbit Erlangga,
2006.
Text.