(2) by referendum, to adopt, alter or repeal their forms of government provided by law;
(3) in the case of municipalities, to provide by referendum for their officers, manner of selection and terms of office;
(4) in the case of counties, to provide for their officers, manner of selection and terms of office as provided in Section 4 of this Article;
(5) to incur debt except as limited by law and except that debt payable from ad valorem property tax receipts shall mature within 40 years from the time it is incurred; and
(6) to levy or impose additional taxes upon areas within their boundaries in the manner provided by law for the provision of special services to those areas and for the payment of debt incurred in order to provide those special services.
