Krishnamurthi,A. (2005). Wealth of India: Dictionary of Indian raw materials and industrial products:Vol VIII.
Lua i Stíl Chicago (17ú heag.)Krishnamurthi,A. Wealth of India: Dictionary of Indian Raw Materials and Industrial Products:Vol VIII. New Delhi, 2005.
Lua MLA (9ú heag.)Krishnamurthi,A. Wealth of India: Dictionary of Indian Raw Materials and Industrial Products:Vol VIII. 2005.
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