230.39  Procedure for conducting school district millage elections.--The manner and method for conducting the school district millage elections shall be as prescribed in chapter 236; provided, that the school board shall publish at least once each week for 2 consecutive weeks, beginning not more than 45 days nor less than 30 days prior to the date set for the election, in some newspaper published in the county and with general circulation throughout the county, a notice of the election. One notice of the election shall be sufficient. In case there shall be no newspaper published in the county, the notice of election shall be posted at least 30 days prior to the election.