A procedure whereby a proposed legislation is referred to the electorates for settlement by their direct votes is called :  

Explanation:-

Referendum: A public vote with possibly legally binding consequences. Repatriation: The sending back of someone to his country of origin such as an illegal immigrant or prisoner of war. Representative democracy: In modern times what is commonly know as a democracy, even though the people do not directly vote on actual issues and laws but surrender that right to their duly elected representatives. Republic: Defined by some sources as simply a democracy, but otherwise loosely described as a form of government where, in word or deed, rule is constrained by institutional frameworks and is not by the selected few. Not an oligarchy but not necessarily a democracy. The Roman Republic was the original precedent for republicanism. Apartheid South Africa, by this definition, was a republic.