(3ebOeI aj CUhd GdJQHjI (B/s - (3cTejQj, eMeO YKeGfs ((3GdQjGV (B:s (3ecJHI GdYHjcGf,s, 1997)
(3HHdjhLQGajI (B: (3U(B. 150-155.s
Keywords: (3GdJQHjIs -- (3adSaIs; (3GdJYdjes -- (3adSaIs