كبيبو ع. . ., عباس ج. . ., and محمود ا. . . “Temporal and Spatial Changes of Total Concentrations of «carbon, Nitrogen, Phosphorus» in Several Locations of Al Kabeer Al Shamali River”. Tishreen University Journal -Biological Sciences Series, vol. 42, no. 6, Jan. 2021, https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/10301.