Mehdi, Harith Q., & Sabah F. Basat.
" 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." <em>Ibn AL- Haitham Journal For Pure and Applied Science</em> [Online], 28.2 (2015): 282-291. Web. 29 Nov. 2019