RAI, U. (2007). BUSINESS COMMUNICATION (9 ed.).
Chicago-čujuhus (17. p.)RAI, URMILA. BUSINESS COMMUNICATION. 9 ed. MUMBAI, 2007.
MLA-čujuhus (9. p.)RAI, URMILA. BUSINESS COMMUNICATION. 9 ed. 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.