Notice shall be given by personal service. If service cannot be made personally, the Tribal Court may authorize service by registered mail at the last known address of the person to be served. If notice cannot be served by registered mail, the Tribal Court may authorize service by publication in either the Tribal newspaper or a newspaper of general circulation in the county where the Court is located, once a week for three (3) consecutive weeks. All notices served whether personally or by registered mail shall be received by the person named therein no less than ten (10) days prior to the date set for the hearing. No hearing can be held sooner than ten (10) days after the last publication where service is made by publication. Except where service is by publication, notice shall include a copy of the petition.