(3af GdJLejd CUhdg h JbfGjJg (B/ s - (3SdjeGf, JjSjQs; (3TehW, RjOs; (3ShjOGf, SejQs ((3YeGf (B:s, 1989)
Keywords: (3GdeXgQ GdTNUjs; (3af GdJLejds