Gaya APA

Kurniawan, E., Kurniawan, A. (2008). Coommunication Builder English For Vocational School : For Intermediate Level ( Grade XII ) Vocational School (SMK/MAK) . Jakarta: Pusat Perbukuan.

Gaya MLA

Kurniawan, Eri., Kurniawan, Arief. "Coommunication Builder English For Vocational School : For Intermediate Level ( Grade XII ) Vocational School (SMK/MAK)". Jakarta: Pusat Perbukuan, 2008. Text.