(3eaGgje CSGSjI aj GdQjGVjGJ GdMOjKI (B/s - (3dGQSf ,eGcS Oj s; (3GdeNJGQ , BeGd TgGH s ((3HZOGO (B:s (3LGeYI HZOGO,s, 1987)
Keywords: (3GdQjGVjGJ s