(3TQM bGfhf GdYbhHGJ GdbSe GdNGU (B:s (3ai LQGFe GdCehGd (B/s - (3MSfi CMeO GdLfOis ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI ,s, 1985)
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf LfGFis; (3GdLQGFe GdeGSI HGdCehGds