Gaya APA
Waid, A., Dwiningsih, .
(2011).
Rahasia tembus skor toefl minimal 550
.
Yogyakarta:
Pinus Book Publisher.
Gaya MLA
Waid, Abdul., Dwiningsih, .
"Rahasia tembus skor toefl minimal 550".
Yogyakarta:
Pinus Book Publisher,
2011.
Text.