What is the difference between a ballot initiative and a referendum in georgia?

What is the difference between a ballot initiative and a referendum in Georgia? Between 1911-1913, the Georgia legislature enacted laws granting initiative, referendum, and recall rights to the residents of four cities, including Atlanta (the Initiative & Referendum movement was a force in Georgia politics).

A "ballot initiative" is when citizens get signatures and make the decision to put it on the ballot to be voted on (citizens draft a proposed law). And a "referendum" is a decision for the general assembly to put a bill on the ballot (the legislature refers a piece of legislation to the people to either approve or reject it by vote). These terms refer to processes that allow citizens to vote directly on particular pieces of legislation.

answer; /// i believe the correct answer is general act charters;