(3TQM OjhGf GdeJfHj(B- (3GdLRA GdKGdKs - (3GdHQbhbj(B. (3YHO GdQMefs ((3OGQ GdcJGH GdYQHjs (3HjQhJs, 1986)
Keywords: (3GdTYQ GdYQHjs; (3GdTYQ GdYQHj(B-(3OhGhjfs