Mehdi, Harith Q., and Sabah F. Basat. 2017. “Study of the Density of Crustacean Zooplankton and Some Environmental Factors Inside and Outside the Cages Breeding Fish in the Tigris River (Al Rashidiya Area) Baghdad”. Ibn AL- Haitham Journal For Pure and Applied Sciences 28 (2):282-91. https://jih.uobaghdad.edu.iq/index.php/j/article/view/237.