Resolution No. 1229 of the Council of Ministers of the Republic of Belarus “On Awarding the title of “Honored Collective of the Republic of Belarus” to the State Academic Choir of the Republic of Belarus named after R. Shirma of the Belarusian State Philharmonic Society of the Red Banner of Labor
NARB. F. 7. Op. 21. D. 1253. L. 76. The original. Typescript