(3GdCUGHY GdNajI (B!s (3VO GdCgOGa GdHTQjI (B/s - (3NjQ, gGfjs ((3HjQhJ (B:s (3OGQ GdLjd,s, 1991)
(3HHdjhLQGajI (B: (3UaMI (B180-181.s
Keywords: (3GdLQGFe GdSjGSjIs; (3GdGZJjGds