APA Style

Blyton, E., Setiadi, A. (2012). Puzzle for the secret seven : Misteri biola kuno (1st). Jakarta: Gramedia Pustaka Utama.

MLA Style

Blyton, Enid., Setiadi, Agus. "Puzzle for the secret seven : Misteri biola kuno". 1st Jakarta: Gramedia Pustaka Utama, 2012. Text.