Iyer, U. (2005). A Textbook in business economics (6th.). Ashwarya Pub.
Dyfyniad Arddull ChicagoIyer, Usha. A Textbook in Business Economics. 6th. Mumbai: Ashwarya Pub, 2005.
Dyfyniad MLAIyer, Usha. A Textbook in Business Economics. 6th. Ashwarya Pub, 2005.
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