The initiative and referendum are reserved by this Charter to the people of Golf Manor to be exercised as prescribed in this Charter. Electors qualified by registration and otherwise to vote in Golf Manor and equal in number to not less than ten (10) percent of the number of those who voted in the preceding gubernatorial election in the Village, may by an initiative petition propose to Council the passage of an ordinance set forth therein, or by a referendum petition propose the repeal of any measures passed within 30 days by Council, except as otherwise prescribed in this Charter.