(3GdfUhU GdeMche HYOe OSJhQjJg aj JTQjYGJ GdYGedjf (B/ s - (3MSf, Ydj YhVs ((3GdbGgQI (B:s (3OGQ GdeWHhYGJ GdLGeYjI,s, 1997)
Keywords: (3bGfhf GdYeds; (3GdYGedhfs; (3JTQjYGJ GdYeds; (3JTQjYGJ GdYeds; (3GdbGfhfs; (3GdYed h GdYeGds