Hussain, Sadiq, Kanwar saleem, khurram shahzad, Niaz ahmed akhtar, and arshad chughtai. “Physical Parameters Affecting Thermal Conversion of Low-Grade Coal and Biomass for Gasification”. Journal of the Pakistan Institute of Chemical Engineers 42, no. 2 (August 27, 2014): 59–68. Accessed October 31, 2025. https://www.piche.org.pk/journal/index.php/jpiche/article/view/166.