(3GddZI GdYQHjI hGdhYj Gdbhej (B.s - (3eWdhH , GMeO (B.s ((3HjQhJ (B:s (3eQcR OQGSGJ GdhMOI GdYQHjI ,s, 1986)
Keywords: (3GdbhejI GdYQHjI (B.s