(3YKeGf GdehUdj (B: (3bUI MjGJg hYHbQjJg (B/s - (3GdHcQj, YGOds ((3HZOGO(B:s (3OGQ GdTDhf GdKbGajI dYGeI ,s, 1990)
Keywords: (3YKeGf GdehUdjs