STUPAK, O. THE ESSENCE OF THE CONCEPT OF THE YOUTH SOCIAL ACTIVITY. Continuing Professional Education: Theory and Practice, [S. l.], n. 1-2, p. 164–171, 2019. DOI: 10.28925/1609-8595.2018(1-2)164171. Disponível em: http://npo.kubg.edu.ua/article/view/181929. Acesso em: 2 may. 2024.