Gaya APA
Prastowo, P. (2010).
Improve your toefl vocabulary in seconds: pelatihan-pelatihan praktis super efektif .
Yogyakarta:
DIVA Press.
Gaya MLA
Prastowo, Panca.
"Improve your toefl vocabulary in seconds: pelatihan-pelatihan praktis super efektif".
Yogyakarta:
DIVA Press,
2010.
Text.