(3GdeedcI GdYQHjI GdSYhOjI (B:s (3OQGSI aj GdghjI GdLZQGajI (B/s - (3eMeOjf, eMeO eMehOs ((3GdQjGV (B:s (3OGQ GdNQjLj ddfTQ hGdJhRjY,s, 2001)
(3HHdjhLQGajI (B: (3U(B. 431-438.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdSYhOjIs -- (3LZQGajGs