(3GdgdGd jhdjg (B1997 : (3GdGMRGH GdeUQjIs ((3GdbGgQI (B: s (3OGQ GdgdGd ddWHGYI hGdfTQ , s, 1997)
Keywords: (3GdGMhGd GdSjGSjIs; (3GdGMRGH GdSjGSjIs; (3GdeUQjhf GdbOeGAs; (3eUQ (B- (3JGQjN (B- (3GdYUQ GdMOjK (B- (3KhQI (B1919s; (3egQLGf cGfs; (3GdebGdGJ GdYQHjI (B- (3eUQs