(3gPG MdGd hgPG MQGe (B/s - (3YWG, YHO GdbGOQ CMeOs ((3HjQhJ (B:s (3OGQ GdcJH GdYdejI,s, 1985)
Keywords: (3GdCMcGe GdTQYjIs; (3GdMdGd hGdMQGes; (3CUhd Gdabg GdESdGejs -- (3GdMdGd hGdMQGes