Gaya APA
Riyanto, S. et al
(2016).
TOEFL: Test Of English As A Foreign Language Preparation
.
Yogyakarta:
Andi .
Gaya MLA
Riyanto, Slamet. et al.
"TOEFL: Test Of English As A Foreign Language Preparation".
Yogyakarta:
Andi ,
2016.
Text.