Johnson, P. (2008). Business economics I F.Y.B.Com. Manan Prakashan.
Chicago-čujuhus (17. p.)Johnson, P. Business Economics I F.Y.B.Com. Mumbai: Manan Prakashan, 2008.
MLA-čujuhus (9. p.)Johnson, P. Business Economics I F.Y.B.Com. Manan Prakashan, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.