(3GdeDJeQ GdOhdj ddHQdeGfjjf HTCf CReI GdTQb GdChSW(B/s - (3eLdS GdCeIs ((3eUQ(B:s (3eLdS GdCeI(B,s, 1970)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOhdj GdYGes; (3GdSjGSI GdOhdjIs