(3MSGHGJ bUQ GdOGQI (B: s (3GdeNd GdgfOSj dMSGHGJ JjGQ bUQ GdOGQI aj GdeTGQjY GdUfGYjI h GdJLGQjI (B/ s - (3YHjO, gGfjs ((3YeGf (B:s (3OGQ GdTQhb,s, 2001)
Keywords: (3GdgfOSI GdcgQHGFjIs; (3GdfXGe GdcgQHGFjs