عناصر مشابهة

• Silicosis among workers in sand bricks industry 
  بواسطة: Hassan, Gaafar Mohamed A.E  منشور: (1983)
• RESPIRATORY HEALTH EFFECTS IN THE CERAMICS AND PORCELAIN ISDUSTRY
  بواسطة: AMAL AHMED MOHAMED HEGAZY منشور: (2005)
• Silicosis among Workers in Sand Bricks Industry
  بواسطة: Hassan, Gaafar Mohamed A. E. منشور: (1983)
• Study of silicosis in phosphate warker in red sea rection 
  بواسطة: Salib, Magdi Mossa  منشور: (1976)
• A STUDY ON BONDINGN OF PORCELAIN REPAIR MATERIALS
  بواسطة: MOHAMED RAGAB GAMAL EL DIN منشور: (1996)