(3cja JUHM eOjQG dTHcI GdceHjhJQs - (3CHh GdSYhO, SjO eUWais ((3GdbGgQIs (3OGQ GdcJH GdYdejIs, 2000)
(3dH (B20s
2
Keywords: (3GdMGSHGJ GdBdjI ` THcGJs; (3THcGJ GdeYdheGJs