(3GdeYLe GdMOjK (B: s (3YHQj (B- (3YQHj ddeJQLe h ddWGdH GdLGeYj (B/ s - (3ceGd, QHMjs ((3HjQhJ (B:s (3OGQ GdYde ddedGjjf,s, 1975)
Keywords: (3GddZI GdYHQjIs; (3GdbhGejSs; (3GddZI GdYQHjIs