(3GdLQajhf (B:s (3Hjf GdJcja eY GdabQ hUfGYI QGS GdeGd (B/s - (3TGeHjfjhd , HQfGQO s ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH,s, 1999)
Keywords: (3GdehSjbi s; (3GdehSjbis -- (3JGQjN s