KRISHNAMURTHY , N., M. PALANICHAMY, A. CHELLAMANI, J. ARUL LEO BASTIN, M. MADASAMY, P. VALLINAYAGAM, and D. MADHAVAN. “Liquid Phase Depolymerization of Neyveli Lignite Over Phosphotungstic Acid”. Asian Journal of Chemistry 25, no. 13 (September 5, 2013): 7437–7440. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_14_81.