Datta Ray, B. (1978). Assam Secretariat, 1874-1947: An administrative history of North-East India. K.P. Bagchi.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDatta Ray, Basudeb. Assam Secretariat, 1874-1947: An Administrative History of North-East India. K.P. Bagchi, 1978.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDatta Ray, Basudeb. Assam Secretariat, 1874-1947: An Administrative History of North-East India. K.P. Bagchi, 1978.
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