Previous recommendation: To clearly define the various types of referendums and the provisions applicable to them by addressing in detail the following issues in the law: the questions subject to referendum; the hierarchical rank of the provisions submitted to referendum (constitutional or statutory provisions); the nature of the proposal submitted to referendum (e.g., a generally-worded or a concrete proposal); the effect of the request for a referendum on the current legislation; and to clearly define the issues which cannot be submitted to referendum.