(3GdehSjbG GdGfOdSjI GdeZQHjI(B:s (3afhf GdGOGA(B/(3JCdjas - (3GHf YHO GdLdjd,YHO GdYRjRs ((3GdUaGI,GdchjJ(B:s (3eWHYh GdQSGdI,s, 1988)
Keywords: (3GdehSjbi GdeZQHjIs