Boruah, Annapurna, B. Kumar, P. H. Rao, and T. Harinarayana. “Integrated Development Of Both Conventional And Unconventional Coal Fuels In India”. The International Journal of Science & Technoledge 1, no. 11 (November 30, 2013). Accessed July 17, 2024. http://internationaljournalcorner.com/index.php/theijst/article/view/128086.