https://www.wpar.net/how-to-manage-members-permissions-in-wordpress/%d9%84%d9%84%d8%a7%d9%86%d8%aa%d9%82%d8%a7%d9%84-%d8%a5%d9%84%d9%89-%d8%b5%d9%81%d8%ad%d8%a9-%d8%aa%d8%ad%d8%b1%d9%8a%d8%b1-%d8%a8%d9%8a%d8%a7%d9%86%d8%a7%d8%aa-%d8%a7%d9%84%d8%b9%d8%b6%d9%88/