Gaya APA

Pradiansyah, A. (2014). The & Laws of Happines " How Choosing Your Thoughts Can Make You Happier (ed.- cet. -). Jakarta: PT.GRAMEDIA PUSTAKA UTAMA.

Gaya MLA

Pradiansyah, Arvan. "The & Laws of Happines " How Choosing Your Thoughts Can Make You Happier". ed.- cet. - Jakarta: PT.GRAMEDIA PUSTAKA UTAMA, 2014. Text.