Cheepurupalli , R., Radha , A., C.S, S., G.V.S, S. and Rao E.N, D. (2015) “Chemical Characteristics and Trace Element Concentration of Non Coking Coals from Talcher Coal Fields, Orissa, India”, Science, Technology and Arts Research Journal, 4(3), pp. 197–205. Available at: https://journals.wgu.edu.et/index.php/star/article/view/267 (Accessed: 3 August 2026).