(3GdCSGS GdbGfhfj dfXQjI GdehXa GdaYdj (B/ s - (3eLOj YR GdOjf jhSas ((3eUQ(B: s (3TQcI GdWhHLj ddWHGYI hGdfTQ, s, 1988)
(3GdfU HGddZI GdYQHjIs
Keywords: (3fXQjI GdehXa GdaYdjs