Gaya APA
RIYANTO, S. (2007).
The 1st Student's Choice Toefl Test Of English As A Foreign Language (1).
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
RIYANTO, SELAMET.
"The 1st Student's Choice Toefl Test Of English As A Foreign Language".
1
Yogyakarta:
Pustaka Pelajar,
2007.
Text.