Gaya APA

Kurnia, A, S, /, A, S, D, /, T, S, K, /, R. (2007). Competence-Based English IX . Jakarta: Grafindo Media Pratama.

Gaya MLA

Kurnia, Anwar, Sofyanda, /, Ai, Siti, Djamilah, /, Titie, Surtiyah, K., /, Rachmat. "Competence-Based English IX". Jakarta: Grafindo Media Pratama, 2007. Text.