Gaya APA

Fitriani, O. (2014). The Secret Of Self-Improvement: Detoks Hati dan Pikiran . Jakarta: PT Gramedia Pustaka Utama.

Gaya MLA

Fitriani, Okina. "The Secret Of Self-Improvement: Detoks Hati dan Pikiran". Jakarta: PT Gramedia Pustaka Utama, 2014. Text.