Research Department
Research Journal
Bull.Fac. Sci.,Assiut Univ.,71516 Assiut,Egypt.
Research Member
Research Publisher
Fac. Sci.,Assiut Univ.,71516 Assiut,Egypt.
Research Rank
2
Research Vol
Vol. 21 - No. 2-A
Research Year
1992
Research Pages
pp. 1 - 14