(3eUGOQ fgL GdHdGZI hGSGfjOI (B/ s - (3GdNWjH (B, (3GdSjO YHOGdRgQGA GdMSs ((3HjQhJ (B: s (3OGQ GdGVhGA , s, 1985)
Keywords: (3GdGOH GdYQHis; (3GdHdGZI GdYQHjIs