APA Style
Hanggarini, P. (2007).
English for undergraduate students of international relations / Peni Hanggarini (Cet.1).
bandung:
Humaniora.
MLA Style
Hanggarini, Peni.
"English for undergraduate students of international relations / Peni Hanggarini".
Cet.1
bandung:
Humaniora,
2007.
Text.