Gaya APA

Abdullah, A, F. (2014). Keep Positive Thinking, 20 Tips Membangun Kepribadian Islami (Cet. 1). Depok: Gema Insani.

Gaya MLA

Abdullah, Adil, Fathi. "Keep Positive Thinking, 20 Tips Membangun Kepribadian Islami". Cet. 1 Depok: Gema Insani, 2014. Text.