(3LPhQ (B/ s - (3YHOGdMejO agei GdLeGds; (3gjdi(B, (3GdjcSs ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1986)
Keywords: (3GdbUU GdGfLdjRjI GdeJQLeIs; (3GdGOH GdGfLdjRi GdeJQLes