Uma Sekaran. RESEARCH METHODS FOR BUSINES,6/E. Wiley.
Chicago-čujuhus (17. p.)Uma Sekaran. RESEARCH METHODS FOR BUSINES,6/E. Wiley.
MLA-čujuhus (9. p.)Uma Sekaran. RESEARCH METHODS FOR BUSINES,6/E. Wiley.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.