Gaya APA
Heasley, B.
(1997).
English in Use for SMU 3A : Year 3 First Semester (1997)
.
Jakarta:
Erlangga.
Gaya MLA
Heasley, Brandon.
"English in Use for SMU 3A : Year 3 First Semester (1997)".
Jakarta:
Erlangga,
1997.
Printed Book.