Cokins, G. (2009). Performance Management. John Wiley & Co.
Chicago-čujuhus (17. p.)Cokins, Gary. Performance Management. John Wiley & Co, 2009.
MLA-čujuhus (9. p.)Cokins, Gary. Performance Management. John Wiley & Co, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.