Gaya APA

WULANDARI, H, A, S. (2010). OLIMPIADE EKONOMI (1st and). Jakarta: CERDAS PUSTAKA PUBLISHER.

Gaya MLA

WULANDARI, HARTONO, ANASTASIA, SEPTA. "OLIMPIADE EKONOMI". 1st and Jakarta: CERDAS PUSTAKA PUBLISHER, 2010. Text.