Gaya APA

Guru, T, B, K. (2012). Science 2A : For Elementary School Year 2 Semester 1 (1). Indonesia: Erlangga for Kids.

Gaya MLA

Guru, Tim, Bina, Karya. "Science 2A : For Elementary School Year 2 Semester 1". 1 Indonesia: Erlangga for Kids, 2012. Text.