(3de jcf cGajG (B: s (3TYQ (B/ s - (3WGQb ecGhis ((3GdGQOf (B: s (3OGQ GdjfGHjY ddfTQ hGdJhRjY , s, 1997)
Keywords: (3GdTYQ GdYQHis; (3GdTYQs; (3GdTYQ GdYQHi (B- (3eUQs