The county commissioners or county council shall notify the voters of the area proposed to be incorporated by posting and publication of the proposal to incorporate, including a fair summary of the proposed municipal charter. For at least 4 weeks immediately before the referendum, the county commissioners or county council shall make available an exact copy of the proposed municipal charter for public inspection at its office. The county commissioners or county council shall publish notice of the referendum, together with a fair summary of the proposed municipal charter, in a newspaper of general circulation in the area proposed to be incorporated at least once a week during the 4 weeks immediately before the referendum. On the day of the referendum, the county commissioners or county council shall make available an exact copy of the proposed municipal charter for public inspection at each place for voting on the referendum.