(3GdHQeLI HdZI GdHGScGd (B/ s - (3cjdQ (B, (3GQKQ e(B.s; (3GSGeI GHQGgje GdOShbis; (3SejQ GHQGgje TGgjf (B((3eJQLe(B)s ([S.N] : (3GdOGQ GdOhdjI ddfTQ hGdJhRjY , s, 1989)
Keywords: (3GdMGSHGJ GdGdcJQhfjIs; (3GdHQeLIs; (3HGScGds; (3GdMGSHGJ GdGdcJQhfjI (B- (3HQGeLs