Gaya APA

Kusumastuti, ., Nuraeni, D, N, D, R. (2009). 3 Sahabat : Misteri aeiou . Jakarta: Erlangga For Kids.

Gaya MLA

Kusumastuti, ., Nuraeni, Danu, Nugraha, Dan, Rani. "3 Sahabat : Misteri aeiou". Jakarta: Erlangga For Kids, 2009. Book.