(3MjGJc ef UfY CacGQc (B/s - (3MdhGfj, SejQ ,s ((3LOI (B- (3GdSYhOjI (B:s (3GdQjGV (B:s (3OGQ GdCfOdS GdNVQGA ddfTQ hGdJhRjY,s, 2000)
Keywords: (3GdfLGMs; (3GdfLGM GdTNUjs