[1]
BUSEL-KUCHYNSKAYA Е. 2018. THE ESTABLISHMENT OF THE SOVIET SYSTEM OF PRESCHOOL EDUCATION IN LANDS OF RUSSIAN-BELARUSIAN BORDER 1917–1924 (ON MATERIALS OF VITEBSK REGION). Vestnik of Polotsk State University. Part E. Pedagogic Sciences. 7 (Aug. 2018), 8-13.