DENISOVA, I. “THE MAJOR FACTORS OF MUSICAL EDUCARTION DEVELOPMENT IN VITEBSK PROVINCE OF THE SECOND HALF JO THE XIXth – THE BEGINNING OF THE XXth CENTURIES”. Vestnik of Polotsk State University. Part E. Pedagogic Sciences, no. 7, Aug. 2018, pp. 14-20, https://journals.psu.by/pedagogical/article/view/44.