Gaya APA
Heasley,brendan, .
(1995).
English in use for SMU 2b
.
Jakarta:
Gema Insani Pers.
Gaya MLA
Heasley,brendan, .
"English in use for SMU 2b".
Jakarta:
Gema Insani Pers,
1995.
Buku Paket.