Levin, R. I. &. O. (2013). Statistics for management.
Chicago-čujuhus (17. p.)Levin, Richard I & Others. Statistics for Management. Delhi, 2013.
MLA-čujuhus (9. p.)Levin, Richard I & Others. Statistics for Management. 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.