AL-Qazzaz, Kamal Muhsin Ali, and Hassanain A. AL-Lami. 2017. “Effect of Flow Rate, Angle and Height of Spray of Tractor-Mounted Boom Sprayer on Weeds Control at Wheat Fields.”. Al-Qadisiyah Journal of Pure Science 18 (2), 26-41. https://www.journalsc.qu.edu.iq.51-77-64-103.cpanel.site/index.php/JOPS/article/view/420.