Gaya APA

Nirmala, O, B. (2014). Terapi Pikiran Bahagia (Copyright). Ciracas Jakarta: Emir Cakrawala Islam.

Gaya MLA

Nirmala, Oktastika, Badai. "Terapi Pikiran Bahagia". Copyright Ciracas Jakarta: Emir Cakrawala Islam, 2014. Text.