(3cd TjA Yf GdUOQ (B/ s ((3GdbGgQg (B:s (3GdOGQ GdOhdjI ddfTQ h GdJhRjY,s, 1996)
Keywords: (3GdLgGR GdJfaSjs; (3CeQGV GdJfaSs; (3GdCeQGV GdUOQjIs