Alheidary, M. H. R. “EFFECT OF THE OPERATING PRESSURE AND NOZZLE HEIGHT ON DROPLETPROPERTIES USING KNAPSACK SPRAYER”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, Vol. 49, no. 3, Dec. 2018, http://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/105.