يونس سليمان, and ليلى حبيب. 2025. “Preparation of Nitrogen Slow Release Fertilizer by the Inclusion of Commercial Urea With Syrian Zeolite Ore and Testing It Agronomically”. Latakia University Journal -Biological Sciences Series 46 (5):11-26. https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/18291.