THE SOCIO-PEDAGOGICAL EXPERIENCE OF V.P. KASHCHENKO IN THE “SANATORIUM-SCHOOL" SOCIAL INSTITUTE. Education in the 21st Century, [S. l.], v. 5, n. 1, p. 196–205, 2023. DOI: 10.46991/educ-21st-century.v5.i1.196. Disponível em: https://journals.ysu.am/index.php/Educ-21st-Century/article/view/10515. Acesso em: 22 jan. 2026.