(3bGfhf GdQbGHI Ydi GdfbO hGdJgQjH(B.s (3GdLRA GdChd(B.s (3GdbhGYO GdYGeI (B/s - (3YHO GdefYe YHO GdQMje GdYhVj(B.s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1977)
Keywords: (3GdJTQjYGJ PGJ GdWHjYI GdeGdjI hGdEbJUGOjIs; (3bGfhf GdELQGAGJ GdLfGFjIs