Gaya APA
Lougheed, L.
(2007).
Toeic test with audio compact discs 4 th edition
(
4)
.
Singapore:
Barrons.
Gaya MLA
Lougheed, Lin.
"Toeic test with audio compact discs 4 th edition".
4
Singapore:
Barrons,
2007.
UMUM.