(3GdCMhGd GdTNUjI aj GdCgdjI h GdhUjI hGdJQcGJ (B/ s - (3GdSHGYj, eUWais; (3GdUGHhfj, YHO GdQMefs ((3OeTb (B:s (3eWHYI LGeYI OeTb,s, 1970)
Keywords: (3GdESdGes; (3Gdabgs; (3bGfhf GdEMhGd GdTNUjIs; (3GdehGQjKs