Nguồn Sơn La: http://www.baosonla.org.vn/vi/bai-viet/xay-dung-thanh-pho-xung-tam-trung-tam-chinh-tri-kinh-te-van-hoa-xa-hoi-cua-tinh-chinh-tri-kinh-te-van-hoa-xa-hoi-cua-tinh-35008