KHALIFA, Ahmed et al. Effects of bubbler irrigation frequency on yield and quality of foster grapefruit under Khartoum State conditions. Gezira Journal of Agricultural Science, [S.l.], v. 15, n. 2, dec. 2017. ISSN 1728-9556. Available at: <http://37.60.236.48/index.php/gjas/article/view/971>. Date accessed: 03 june 2026.