Petitions requesting special school elections and bearing the approval of the board of education of the local school administrative unit shall be presented to the board of county commissioners, and it shall be the duty of said board of county commissioners to call an election and fix the date for the same: Provided, that the board of education requesting the election may, for any reason deemed sufficient by said board which shall be specified and recorded in the minutes of the board, withdraw the petition by the twenty-fifth day before the election, and if the petition be so withdrawn, the election shall not be held unless by some other provision of law the holding of such election is mandatory. In the case of a city administrative unit in any incorporated city or town and formed from portions of contiguous counties, said petition shall be presented to the governing body of the city or town situated within, coterminous with, or embracing such city administrative unit, and the election shall be ordered by said governing body, and said governing body shall perform all the duties pertaining to said election performed by the board of county commissioners in elections held under this Article. (1955, c. 1372, art. 14, s. 6; 1959, c. 72; 1981, c. 423, s. 1; 1993 (Reg. Sess., 1994), c. 762, s. 9.)