Sallau, A. A., A. Jauro, A. M. Kolo, U. F. Hassan, and E. O. Ekanem. “Effect of Carbonization Temperature on Properties of Char from Palm Kernel Shell”. Journal of Science and Mathematics Letters, vol. 9, no. 1, Apr. 2021, pp. 77-88, doi:10.37134/jsml.vol9.1.7.2021.