Gaya APA
Prasetyono, D, S., R, N, A. (2018).
The Best Guide Book of TOEFL Preparation (Ed. 1, Cet. 1).
Yogyakarta:
Pustaka Widyatama.
Gaya MLA
Prasetyono, Dwi, Sunar., R, Nina, Artanti.
"The Best Guide Book of TOEFL Preparation".
Ed. 1, Cet. 1
Yogyakarta:
Pustaka Widyatama,
2018.
Book.