Gaya APA

Indjratt, R, E., Djokopranoto, R. (2003). Proses Bisnis Outsourcing (Cet. 3). Jakarta: Grasindo.

Gaya MLA

Indjratt, Richardus, Eko., Djokopranoto, Richardus. "Proses Bisnis Outsourcing". Cet. 3 Jakarta: Grasindo, 2003. Text.