Nargundkar, R. Marketing Research: Text and Cases (3rd.). McGraw Hill.
Chicago-čujuhus (17. p.)Nargundkar, Rajendra. Marketing Research: Text and Cases. 3rd. McGraw Hill.
MLA-čujuhus (9. p.)Nargundkar, Rajendra. Marketing Research: Text and Cases. 3rd. McGraw Hill.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.