Gaya APA

Dowie, M, D, D, G. (2013). English Elevantor International 3 ( Student Book) . : PT Astra Ilmu Sukses.

Gaya MLA

Dowie, Michael, Dan, David, Gray. "English Elevantor International 3 ( Student Book)". : PT Astra Ilmu Sukses, 2013. teks.