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, [S. l.], v. 4, n. 3, p. 1831–1843, 2026. DOI: 10.59628/jast.v4i3.2204. Disponível em: https://journals.su.edu.ye/index.php/jast/article/view/2204. Acesso em: 25 apr. 2026.