Aaker, D. (2016). Marketing Research (11th.). Wiley.
Chicago-čujuhus (17. p.)Aaker, David. Marketing Research. 11th. Wiley, 2016.
MLA-čujuhus (9. p.)Aaker, David. Marketing Research. 11th. Wiley, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.