Gaya APA
Ang-Zie, K. (2017).
14 Exams in preparation & Practice exam TOEFL (Cetakan pertama).
Surabaya:
Genta Group Production.
Gaya MLA
Ang-Zie, Kent.
"14 Exams in preparation & Practice exam TOEFL".
Cetakan pertama
Surabaya:
Genta Group Production,
2017.
Text.