A, 1Mohamed; 						D. ELFADIL, 2Abdelkarim; 						MUHIELDEEN, Osama A..
 Effect of tractor forward speed and type of transmission system on agricultural tractors performance under clay soil condition.
<strong>Gezira Journal of Engineering and Applied Sciences</strong>, [S.l.], v. 13, n. 2, feb. 2019.
ISSN 1858-5698. Available at: &lt;<a href="http://37.60.236.48/index.php/gjeas/article/view/1220" target="_new">http://37.60.236.48/index.php/gjeas/article/view/1220</a>&gt;. Date accessed: 03 june 2026.