Shi, Xinjie, et al. “Marginal Land Bioethanol Production of Sweet Sorghum Based on Limited Water Resources in Northwest China”. International Journal of Agricultural and Biological Engineering, vol. 15, no. 3, June 2022, pp. 132-8, https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/6122.