(3YGdL faSc HGdNVQhGJ hGdahGcg (B/ s - (3GdMSjfj, Cjefs ((3GdbGgQI (B:s (3OGQ GdWdGFY,s, 2000)
Keywords: (3GdWH GdTYHjs; (3GdYdGLs; (3GdNVQhGJs; (3GdahGcgs