Dalla, Tawfik, Fahim abd al aziz, and Hasan Y Hoseen. “Effect of Addition Beans and Clover Leaves to the Diet Layer Hens on the Productivity and Quality of the Eggs Produced”. Tishreen University Journal -Biological Sciences Series 41, no. 6 (December 10, 2019). Accessed May 2, 2024. https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/9282.