Gaya APA

Sofyan, C., Dale, T., A. (2002). Kinerja ( performance ). Jilid 6 (Cet.5). Jakarta: .

Gaya MLA

Cikmat, Sofyan., Timpe, A., Dale. "Kinerja ( performance ). Jilid 6". Cet.5 Jakarta: , 2002. Textbook.