(3GdMhGQ GdYQHi GdChQhHi (B: s (3hLgI fXQ YQHjI hhKGFb (B/s - (3CMeO UObi GdOhLGfis ((3GdbGgQI (B:s (3ecJHI GdGfLdh GdeUQjI(B,s, 1976)
(3jTJed Ydj GQLGYGJ HHdjhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdfRGY Hjf GdOhds; (3GdbGfhf GdOhdj GdYGes