Gaya APA

Christie, A., Tantani, J. (2018). Tiga Belas Kasus (The Thirteen Problem) . Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Christie, Agatha., Tantani, Julanda. "Tiga Belas Kasus (The Thirteen Problem)". Jakarta: Gramedia Pustaka Utama, 2018. Text.