Gaya APA

natasha, E., hapsari, W. (2013). Strawberry shortcake : Latihan Pengurangan (Cet.1). Jakarta: Erlangga For Kids.

Gaya MLA

natasha, Edith., hapsari, Windrati. "Strawberry shortcake : Latihan Pengurangan". Cet.1 Jakarta: Erlangga For Kids, 2013. Text.