Gaya APA

S.Pd.Si, R, E., S.Pd.Si, U, F. (2012). Tutor Senior Olimpiade Biologi . Yogyakarta: Ken Mas Media.

Gaya MLA

S.Pd.Si, Ristie, Ermawati,., S.Pd.Si, Upi, Fitriani,. "Tutor Senior Olimpiade Biologi". Yogyakarta: Ken Mas Media, 2012. .