TY JOUR TI Extracurricular Activities in Primary Schools in Donbas in 1920–1940 KW education KW history KW teacher KW school KW primary education KW extracurricular activities KW Donbass JO Bulletin of Kemerovo State University. Series: Humanities and Social Sciences AU Gordeeva, T.S. PY 2025 IS 9 PB Kemerovo State University