Yashim, S., T. Zakka, A. Ibrahim, and S. Usman. “Effect of Variety, Nitrogen Levels and Their Interactions on Proximate and Mineral Composition of Sorghum”. Nigerian Journal of Animal Science, vol. 27, no. 2, June 2026, pp. 160-9, https://njas.org.ng/index.php/php/article/view/1424.