(3GdYQH h GdESdGe (B: s (3bQGAI aj SjGbGJ GdMVGQj h GdeYQaj (B/ s - (3GdQHjYj, ESeGYjd fhQjs ((3YeGf (B:s (3OGQ ecJHI GdMGeO ddfTQ h GdJhRjY,s, 2002)
Keywords: (3GdJGQjN GdESdGejs; (3GdMVGQI GdESdGejIs; (3JGQjN GdYQHs; (3GdCMcGe GdSdWGfjIs