Gaya APA

S.Pd, H, S., Sumarjo, S. (2014). Be The Winner Olimpiade IPS SMP . : Pustaka Widyatama.

Gaya MLA

S.Pd, Heru, Supriyanto,., Sumarjo, S.Pd. "Be The Winner Olimpiade IPS SMP". : Pustaka Widyatama, 2014. Text.