(3JUfja GdfHGJGJ GdhYGFjI (B/ s - (3LhQL g` (B. (3e dhQGfSs; (3YHOGdQMje GMeO GHhQjGs; (3GMeO eMeO eLGgOs ([S.N] : (3OGQ GdacQ GdYQHi , s, 1969)
Keywords: (3GdYdes; (3GdHMhKs; (3GdfHGJs