Who decides on the final form of the ballot text?

Kazakhstan
Law on Referendum (1995, last amended in 2008)
http://aceproject.org/ero-en/regions/asia/KZ/kazakhstan-constitutional-law-on-referenum-1995/view
Article 17. Adoption by the President of the Republicof Kazakhstan of the
decision on the initiative to appoint the republicanreferendum
President of the Republic upon an initiative of theParliament, the Government or citizens of the Republic to appoint referendumshall take one of the following decisions:
1) to appoint a referendum;
2) to make changes and additions to the Constitution,to adopt the constitutional act, the law or any other decision on the question(questions) proposed as the subject of referendum without conduct ofreferendum;
3) to reject the initiative to appoint a referendum.