(3GdYQH hehGLgI GSQGFjd GMJeGdGJ GdeSJbHd (B:s (3fMh GSJQGJjLjI hNWI Yed (B/s - (3GHh daO ,GHQGgje s ((3HjQhJ (B:s (3eQcR OQGSGJ GdhMOI GdYQHjI ,s, 2000)
Keywords: (3GdfRGY GdYQHj GdGSQGFjdj s