India. West Bengal. Director of Census Operations & Ghosh, S. N. (1975). Census of India, 1981. Series 22 West Bengal: General economic tables. Govt. of Bihar.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. West Bengal. Director of Census Operations और S. N. Ghosh. Census of India, 1981. Series 22 West Bengal: General Economic Tables. Govt. of Bihar, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. West Bengal. Director of Census Operations और S. N. Ghosh. Census of India, 1981. Series 22 West Bengal: General Economic Tables. Govt. of Bihar, 1975.
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