(3bGfhf Qbe (B47 (3dSfI (B1972 (3HTCf eLdS GdOhdI hakbG dBNQ GdJYOjdGJ (B/ s - (3GdEOGQI GdYGeI ddTFhf GdbGfhfjI HGdeWGHY GdGejQjI s ((3GdbGgQI (B: s (3GdgjFI GdYGeI dTFhf GdeWGHY GdGejQjI , s, 1995)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfh GdGOGQi s; (3JfXje eLdS GdOhdIs