Gaya APA

Putra, J, E., Trim, B. (2008). Becoming An Entrepreneur Is Easy (Cet.1). Surabaya: PT Menuju Insan Cemerlang.

Gaya MLA

Putra, Julianto, Eka., Trim, Bambang. "Becoming An Entrepreneur Is Easy". Cet.1 Surabaya: PT Menuju Insan Cemerlang, 2008. Text.