Gaya APA

Perryman, S., Upu, H. (2010). English for mathematics instruction (Ed. ke-2). Makassar: Pustaka Refleksi.

Gaya MLA

Perryman, Shane., Upu, Hamzah. "English for mathematics instruction". Ed. ke-2 Makassar: Pustaka Refleksi, 2010. Skripsi.