Gaya APA
Prastowo, P., Yulianto, D.
(2010).
Improve your TOEFL vocabulary in seconds
.
Yogyakarta:
Diva Press.
Gaya MLA
Prastowo, Panca., Yulianto, Diyan.
"Improve your TOEFL vocabulary in seconds".
Yogyakarta:
Diva Press,
2010.
Text.