Gaya APA
Riyanto, S. (2016).
TOEFL Preparation Test Of English as a Foreign Language: Pasti Capai Skor Tinggi .
Yogyakarta:
Pearson Education Limited.
Gaya MLA
Riyanto, Slamet.
"TOEFL Preparation Test Of English as a Foreign Language: Pasti Capai Skor Tinggi".
Yogyakarta:
Pearson Education Limited,
2016.
Teks (Text).