Gaya APA

Sugeng, B. et al (2009). Contextual English [1]: for Grade X of Senior High Schools [KTSP] (Cet. 1.--). Solo: Platinum.

Gaya MLA

Sugeng, Bambang. et al. "Contextual English [1]: for Grade X of Senior High Schools [KTSP]". Cet. 1.-- Solo: Platinum, 2009. Text.