H?i ??ng x? s? ki?n thi?t mi?n B?c bao g?m 28 ??n v? thành viên, trong ?ó có 6 ??n v? t? ch?c quay s? chính th?c và c? ??nh hàng tu?n c? th? nh? sau:The source can not be found. Description: HTTP 404. The source you are searhing for (or one of its dependencies) might have been eradicated, had its identify altered, or is temporarily unavailab