(3GdSbhW ef GdJGQjN(B:s (3eHGQc hYUQg (B-(3GdGbJUGO hGdSjGSI hMJejI GdKhQI (B/s - (3YHGS ,SejQs ((3GdbGgQI (B:s (3eDSSI WjHI ddfTQ hGdJhRjY,s, 2012)
Keywords: (3eUQ (B-(3JGQjN (B-(3GdYUQ GdMOjKs