Chaudhuri, Sanjay and Sen, Raja and Charan, T.Gouri (2017) Characteristics of an Improved collector derived from a waste of coal-processing plant for the beneficiation of Indian coking coal fines by froth flotation. International Journal of Coal Preparation and Utilization. ISSN 1939-2699

Choudhury, Debapriya and Choudhury, Samar S. and Sen, Raja and Mukherjee, Joy and Ghosh, Gora and Srivastava, S.K. (2007) Role of the Nitro Group on Coal Solubilization in Aqueous Organic Solvents. Energy & Fuel , 21 (2). pp. 1006-1013. ISSN 0887-0624

Satpathy, D. and Natarajan, G.S. and Sen, Raja (2004) Modified Granular Activated Carbon: A Carrier for the Recovery of Nickel Ions form Aqueous Wastes. Adsorption Science & Technology, 22 (4). pp. 285-294. ISSN 0263-6174

Chouddhury, D.P. and George , Joshy and Thakur, Sanjay Kumar and Sen, Raja and Mishra, K.K. and Gangopadhyay, A.K. and Bandopadhayay, A.K. and Srivastava, S.K. (2003) Application of Instrumental Techniques for Determining the Physico-chemical Properties of Airborne Particulate Matter. Indian Journal of Environmental Protection, 23 (8). pp. 881-885. ISSN 0253-7141