Tài liệu tham khảo WikiPedia: Thanh_Hưng //tools.wmflabs.org/geohack/geohack.php?language=v... http://vanban.chinhphu.vn/portal/page/portal/chinh... http://huyendienbien.gov.vn/Tintuc/One/Xa-Thanh-Hu...