هيفا س. . . .; أسعد ع.; فارس ر. . . Temporal and spatial changes of some nitrogen pollutants in the lower section of the Alkabeer Alshamali River. Tishreen University Journal -Biological Sciences Series, [S. l.], v. 44, n. 2, p. 213–225, 2022. Disponível em: https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/12429. Acesso em: 17 may. 2024.