Alwan, Q., Rahman, A., Salman, M. and Ali, Z. (2015) “Characterization of Biochar Produced from IRAQI Palm Fronds by Thermal Pyrolysis”, Al-Khwarizmi Engineering Journal, 11(2), pp. 92-102. Available at: http://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/228 (Accessed: 29November2019).