Donkoh, Ebenezer, et al. “Process Integration and Economics Evaluation of Sugar Beet Pulp Conversion into Ethanol”. International Journal of Agricultural and Biological Engineering, vol. 5, no. 2, June 2012, pp. 52-61, https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/532.