Sloman, J. Economics For Business. Pearson.
Chicago-čujuhus (17. p.)Sloman, John. Economics For Business. Pearson.
MLA-čujuhus (9. p.)Sloman, John. Economics For Business. Pearson.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.