Gaya APA

Kusumastuti, ., Nugroho, D. (2009). 3 Sahabat: Misteri Aeiou . Jakarta: Erlangga for Kids.

Gaya MLA

Kusumastuti, ., Nugroho, Danu. "3 Sahabat: Misteri Aeiou". Jakarta: Erlangga for Kids, 2009. Text / Book.