Iyer, U. (2006). A textbook in business economics S.Y.B.Com (7th rev.). Aishwarya.
Chicago-čujuhus (17. p.)Iyer, Usha. A Textbook in Business Economics S.Y.B.Com. 7th rev. Mumbai: Aishwarya, 2006.
MLA-čujuhus (9. p.)Iyer, Usha. A Textbook in Business Economics S.Y.B.Com. 7th rev. Aishwarya, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.