Gaya APA
LOUGHEED, L. (2006).
Longman:preparation series for the new toeic test introductory course (4 th.Ed).
London:
Pearson Longman.
Gaya MLA
LOUGHEED, Lin.
"Longman:preparation series for the new toeic test introductory course".
4 th.Ed
London:
Pearson Longman,
2006.
Text.