Sharaf , Ahmed, and Abdullah Omer. “The Impact of Drum Rotational Speed and Feeding Rate on the Performance of a Wheat Threshing Machine Productivity Energy, and Cost”. Sana’a University Journal of Applied Sciences and Technology 4, no. 3 (March 28, 2026): 1831–1843. Accessed March 31, 2026. https://journals.su.edu.ye/index.php/jast/article/view/2204.