“Impact of Agricultural Planning Policy in Economical Return Improve of Non-Irrigated Crops Farmers in the First Zone of Qamishli District (Al -Hassakae Governorate)”. Damascus University Journal of agriculture sciences 33, no. 1 (June 24, 2021). Accessed August 18, 2026. https://journal.damascusuniversity.edu.sy/index.php/agrj/article/view/53.