Group by: Item Type | No Grouping Number of items: 1. Choudhury, Nandita and Chaudhuri, S.G. and Chakraborty, C.C. and Boral, Prabal (2004) Studies on char morphology in relation to petrographic characteristics of some permian coals of India. Journal of Scientific & Industrial Research , 63 (4). pp. 383-385. ISSN 0022-4456 |