Who decides on the final form of the ballot text?

Constitutional Law onReferendum 

(Enacted in 1995)

http://www.legislationline.org/documents/id/6770

(Official English Translation)

Article 17. Authority ofCentral Commission for Elections and Referendum of the Republic of Tajikistan

Central Commissionfor Election and Referendum has to accomplish the following:

7. Determines forms of referendum ballots, lists ofvoters,  referendum commission protocols, other related documents, samplesof ballot boxes and seals of referendum commissions, the order of referendumfile keeping;