عناصر مشابهة

• Studies on the Effects of Heavy Metals on Freshwater Crustacea
  بواسطة: Al Ghamdi, Hamid Saleh H. H منشور: (1986)
• Studies on the Effects of PH. Aluminium and Water Hardness on Asellus Aquaticus L.
  بواسطة: Al Ayed, Mohammad Ibrahim M. منشور: (1991)
• Ecophysiological studies on freshwater gammarid crustaceans
  بواسطة: Al Lail, Shaikh Safi Jamal منشور: (1986)
• Ecological Studies on Some Freshwater Habitats in the Mid-Western Region of Saudi Arabia
  بواسطة: الغامدي، حامد صالح منشور: (1993)
• A Biochemical Study On Fresh Water Fish Subjected To Different Environmental Pollutants
  بواسطة: El Disouky, Mohamed Wafeek Ali منشور: (1998)