ar %D9%82%D8%A7%D9%84%D8%A8:%D9%85%D9%86 %D8%A3%D8%AC%D9%84 %D8%A7%D8%B3%D8%AA%D8%B9%D9%85%D8%A7%D9%84%D8%A7%D8%AA %D8%A3%D8%AE%D8%B1%D9%89 %D9%88%D9%8A%D9%83%D9%8A%D8%A8%D9%8A%D8%AF%D9%8A%D8%A7:Manual of Style Self-references to avoid