(3efGgL hCSGdjH JOQjS Phj GdMGLGJ GdNGUI (B/s - (3YHjO, eGLOI GdSjOs ((3YeGf(B- (3GdCQOf (B:s (3OGQ UaGA ddfTQ hGdJhRjY,s, 2001)
(3HHdjhLQGajI (B: (3U(B. 315-319.s
Keywords: (3GdJYdje GdNGUs -- (3efGgLs; (3GdeYhbhfs -- (3JYdjes; (3GdaFGJ GdNGUIs -- (3JYdjes