Gaya APA

Peale, N, V., Ismayasari, B. (2015). The Power of Positive Thinking (Cetakan Pertama). Surabaya: MIC Publishing.

Gaya MLA

Peale, Norman, Vincent., Ismayasari, Bethari. "The Power of Positive Thinking". Cetakan Pertama Surabaya: MIC Publishing, 2015. .