Gaya APA

Sujoko, ., Kusmayadi, T, A. (2006). Mathematics book 2 for junior high school students year 8 . Semarang: English Immersion Program.

Gaya MLA

Sujoko, ., Kusmayadi, Tri, Atmojo. "Mathematics book 2 for junior high school students year 8". Semarang: English Immersion Program, 2006. Text / Book.