(3GdOdjd GdbGfhfj dJhXja GdCehGd (B/s - (3CMeO TQa GdOjfs ((3GdbGgQI (B:s (3GdGgQGe GdGbJUGOj,s, 1988)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHj s