(3GWaGd GHWGd (B/ s - (3YHOGdJhGH jhSas; (3YHOGdTGai SjOs ((3HjQhJ (B: s (3OGQ GdcJH GdGSdGejI , s, 1985)
Keywords: (3bUU GdHWhdGJs; (3GdGWaGds; (3GdbUUs