Partha Sarathi Bhattacharya
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R Srikanth, Alok Perti, R K Sachdev, V S Verma, Partha Sarathi Bhattacharya, D N Prasad, Sumantra Bhattacharya Report of the Expert Group on Washing of Thermal Coal is vital for India Reports, 2020, Coal Preparation Society in India, New Delhi (2020) 2020 |