Madura, J. (2007). Introduction to Business.: 4th ed (4th ed.). Thomson South-Western.
Chicago-čujuhus (17. p.)Madura, Jeff. Introduction to Business.: 4th Ed. 4th ed. Canada: Thomson South-Western, 2007.
MLA-čujuhus (9. p.)Madura, Jeff. Introduction to Business.: 4th Ed. 4th ed. Thomson South-Western, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.