(3bUI HdG fgGjI (B/ s - (3GfOg(B, (3ejTGFjds; (3HGgQ eMeO GdLhgQis ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1988)
Keywords: (3GdbUU GdGdeGfjI GdeJQLeIs; (3GdGOH GdGdeGfi GdeJQLes