THE EFFECT OF RAMADI SEWAGE TREATMENT PLANT ON THE PHYTOPLANKTON AND SOME PHYSICO – CHEMICAL CHARACTERS IN EUPHRATES RIVER , IRAQ. Baghdad Sci.J [Internet]. 2009 Dec. 6 [cited 2024 Dec. 24];6(4):673-82. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1031