Gaya APA

Mansur, U, Y., Sanusy, L, Y, E. (2012). The Secret Of A Happy Life . Jakarta: PT Bestari Buana Murni.

Gaya MLA

Mansur, Ust., Yusuf., Sanusy, Luthfi, Yansyah, El. "The Secret Of A Happy Life". Jakarta: PT Bestari Buana Murni, 2012. Text.