Ightiyar, samar, Hani Durgham, and Bader Alali. 2016. “Horizontal and Vertical Distribution of Chlorophyll Phaeophytine and Bacteria in The Natural Borg Islam During Spring and Summar”. Tishreen University Journal -Biological Sciences Series 37 (3). https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/1807.