Gaya APA

Kurniawan, L., Mardiyatmo, S, N, A. (2008). English Today 2 SMA Grade XI Science & Social Program . Bogor: Quadra.

Gaya MLA

Kurniawan, Lanny., Mardiyatmo, Siti, Nuryuni, A. "English Today 2 SMA Grade XI Science & Social Program". Bogor: Quadra, 2008. Text.