(3eYLe ebGjjS GddZI (B/ s - (3Hf RcQjG, GHj GdMSjf GMeO Hf aGQSs; (3gGQhf, YHO GdSdGe eMeOs ((3HjQhJ (B:s (3OGQ GdLjd,s, 1991)
Keywords: (3GddZI GdYQHjIs; (3GdbhGejSs