Gaya APA
Betsis, A., Mamas, L.
(2014).
Succeed in the TOEIC Test Vol 1
.
Haupapauge, New York, AS.:
Erlangga.
Gaya MLA
Betsis, Andrew., Mamas, Lawrence.
"Succeed in the TOEIC Test Vol 1".
Haupapauge, New York, AS.:
Erlangga,
2014.
Text.