(3GdbOS h CfJaGVI GdCbUi hMQH GdYhdeI s - (3CMeO UObi GdOLGfj s ((3eUQ (B:s (3eQcR GdEYdGe GdYQHj (B,s, 2002)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3GdbVjI GdadSWjfjI s; (3GdbOS s; (3GdYhdeI s