GORB, Victor G. The concept of system-activity approach for determining the professional level of public civil servants. Gosudarstvennaya Sluzhba, [S. l.], v. 25, n. 6, p. 6–15, 2023. DOI: 10.22394/2070-8378-2023-25-6-6-15. Disponível em: https://gosudarstvennaya-sluzhba.owebs.ru/article/view/524. Acesso em: 8 nov. 2026.