Gaya APA
S.Pd., H, S, S, S.
(2014).
Be The Winner OLimpiade IPS SMP
.
Yogyakarta:
Pustaka Widyatama.
Gaya MLA
S.Pd., Heru, Supriyanto,, S.Pd.,, Sumarjo,.
"Be The Winner OLimpiade IPS SMP".
Yogyakarta:
Pustaka Widyatama,
2014.
Text.