Gaya APA

Frigo, M, L., Litman, J. (2007). Driven : business, strategy, human actions, and the creation of wealth . USA: Strategy & Execution.

Gaya MLA

Frigo, Mark, L.., Litman, Joel. "Driven : business, strategy, human actions, and the creation of wealth". USA: Strategy & Execution, 2007. Buku/Printed Material.