APA Style

Santoso, T, H, B., Anca, R, K, N, P, D, C. (2010). Speed Up English 1 (primary 1) . Jakarta: Yudhistira.

MLA Style

Santoso, Tri, Hananto, Budi., Anca, Rita, Kurniawan,, Naning, Partini, Dan, Cecilia. "Speed Up English 1 (primary 1)". Jakarta: Yudhistira, 2010. Text.