(3QLGdGJ YQHjI hefLRGJ EbJUGOjI (B/ s - (3GdXGgQ, eMeO CMeOs ((3YeGf (B:s (3OGQ GdfgVI,s, 1985)
Keywords: (3GdEbJUGOs; (3GdHdOGf GdYQHjIs; (3GdEbJUGOjhfs