Das Gupta, N.N. and Ghosh, S.R. and Biswas, S.C. and Mukherj, J. and Roy Chowdhury, A.K. (1959) Assessment of the Yield of Products from Coal Carbonization. Journal of Mines, Metals & Fuels, 7. pp. 340-349. ISSN 0022-2755

Das Gupta, N.N. and Rao, V.V. and Chakrabarty, H.C. and Biswas, S.C. and Lahiri, A. (1959) Metallurgical Coke from High Volatile Coals. Journal of Mines, Metals & Fuels, 7. pp. 148-152. ISSN 0022-2755