عناصر مشابهة

• Study of productive performance for broiler reised under diffrent environmental pollution conditions\\ 
  بواسطة: Abdel Motaal, Alaa Mohamed منشور: (2000)
• Degradation and distribution pattern of certain pestictides on some crops under local conditions minimize the pollution with pesticides in environment\\ 
  بواسطة: Ashoush, Hassan Abdel Latif Hassn منشور: (1991)
• Using diffrent forms of agricultural management to produce HENNA (lawsonia inermis) with minimzed pollution under north sinai conditions\\ 
  بواسطة: Attia, Elham Mohamed  منشور: (2000)
• Water pollution resulting from the use of some pesticides containing metals\\ 
  بواسطة: El-wattar, Nagy Mostafa Hassan منشور: (1997)
• The effect of some fresh water pollution on the snail vectors of schistosmiasis in egypt\\ 
  بواسطة: El-Said, Khalil Mohamed  منشور: (1997)