A. YOUSIF, Lotfie; 						H. BABIKER, Ebtehag.
 Economics of using combine harvesters in the mechanized rainfed schemes of eastern Sudan.
<strong>Gezira Journal of Agricultural Science</strong>, [S.l.], v. 16, n. 2, dec. 2018.
ISSN 1728-9556. Available at: &lt;<a href="http://journals.uofg.edu.sd/index.php/gjas/article/view/1250" target="_new">http://journals.uofg.edu.sd/index.php/gjas/article/view/1250</a>&gt;. Date accessed: 25 june 2026.