TAVOKIN, Evgeny. Social state. What is it?. Gosudarstvennaya Sluzhba, [S. l.], v. 15, n. 6, p. 54–58, 2013. Disponível em: https://gosudarstvennaya-sluzhba.owebs.ru/article/view/21845. Acesso em: 9 nov. 2026.