(3bhGYO GddZI GdaGQSjI eY GdJWHjbGJ h GdfUhU (B/ s - (3LeYg, HOjY eMeOs ((3HjQhJ (B:s (3OGQ GdfgVI GdYQHjI,s, 1982)
Keywords: (3GddZI GdaGQSjIs; (3bhGYO GddZIs