Research Department
Research Journal
Bull.Fac. Sci.,Assiut Univ.,71516 Assiut,Egypt.
Research Member
Research Publisher
Faculty of Science, Assiut University, 71516 Assiut , Egypt
Research Rank
4
Research Vol
Vol. 23, No. 1 - A
Research Year
1994
Research Pages
pp. 41 - 54