(3eHGOF GdbGfhf GdYGe hGdNGU (B/ s - (3Ydj QVGs ((3MdH (B: s (3eOjQjI GdcJH hGdeWHhYGJ GdLGeYjI, s, 1969)
(3GdfU HGddZI GdYQHjIs
Keywords: (3JfXje eLdS GdOhdIs; (3GdeSFhdjI Yf GdbhGfjfs