The report shall be filed with the secretary of the board of directors, who shall thereupon fix a time and place for hearing the report and shall give notice thereof. Notice of the hearing shall be published at least twice in one or more newspapers of general circulation selected by the secretary, from those which are published and circulated within the boundaries of the land within the district which will be benefited by the items for which the bonds are to be issued. The last publication of notice of hearing shall be not less than 20 days prior to the date set for the hearing.