APA Style

Widiati, Utami. (2009). English SMA/MA Grade XII Natural Science and Social Science Programme . Jakarta: Bumi Aksara.

Chicago Style

Widiati, Utami. English SMA/MA Grade XII Natural Science and Social Science Programme. Jakarta: Bumi Aksara, 2009. Text.

MLA Style

Widiati, Utami. English SMA/MA Grade XII Natural Science and Social Science Programme. Jakarta: Bumi Aksara, 2009. Text.

Turabian Style

Widiati, Utami. English SMA/MA Grade XII Natural Science and Social Science Programme. Jakarta: Bumi Aksara, 2009. Print.