(3GdLQjeI hGdYbhHI ai GdTQjYI GdESdGejI (B:s (3OQGSI JMdjdjI dCMcGe GdbUGU hGdMOhO hGdJYRjQ (B/s - (3YHOGdQMje UObi s ((3GdbGgQI (B:s (3ecJHI GdfgVI GdeUQjI,s, 1986)
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf GdELQGAGJ GdLfGFjI s; (3GdbGfhf GdLfGFi s