Singh, Ashok Kumar and Shukla, Niraj Kumar and Srivastava, S.K. and Haldar, D.D. (2009) Precautionary measures in determining volatile matter in natural coke washability fractions. International Journal of Coal Preparation and Utilization, 29 (1). pp. 34-47. ISSN 1939-2699

Singh, Ashok Kumar and Prasad, N and Shukla, Niraj Kumar (2008) Influence of htt on physico mechanical properties of synthetic graphite for specific industries. Minetech, 29 (2). pp. 35-48. ISSN 0970-7204

Singh, Ashok Kumar and Singh, R.V.K. and Chandra, Hem and Shukla, Niraj Kumar (2007) Mine Fire Gas Indices and their Application to Indian Underground coal Mine Fires. International Journal of Coal Geology , 69 (3). pp. 192-204. ISSN 0166-5162

Singh, Ashok Kumar and Shukla, Niraj Kumar and Singh, Vivek and Chaudhary, S.K. and Srivastava, S.K. (2007) Indian Coal : A Source of Carbon for artefact Industries. Minetech, 28 (1). pp. 55-60. ISSN 0970-7204