Kumar, A. (1999). The black economy in India. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Kumar, Arun. The Black Economy in India. New Delhi ; New York, NY: Penguin Books, 1999.
Lua MLA (8ú heag.)Kumar, Arun. The Black Economy in India. Penguin Books, 1999.
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