Asif, M., Hussain, M.A., Riaz, A., Mujahid, R., Akram, M.S., Haider, B., Kanwal, S. and Zeb, H. 2023. A physical coal cleaning approach for clean energy production from low grade Lakhra coal of Pakistan using diester table. Journal of the Pakistan Institute of Chemical Engineers. 51, 2 (Sep. 2023). DOI:https://doi.org/10.54693/piche.05121.