(3GdhSjW ai bGfhf GdYed (B/ s - (3aJMi YHO GdUHhQ (B.s ((3GdbGgQI (B:s (3fGOi GdbVGg ,s, 1985)
Keywords: (3bGfhf GdYed (B.s; (3YdGbGJ GdYed GdaQOjI (B. s; (3JTQjYGJ bGfhf GdYed (B.s; (3YbO GdYed (B. s; (3GdJfXje dbhGfjf GdYed (B. s