Certification of a police officer as a professional standard of his work. Bulletin of Kharkiv National University of Internal Affairs, [S. l.], v. 95, n. 4, p. 98–108, 2021. DOI: 10.32631/v.2021.4.07. Disponível em: https://visnyk.univd.edu.ua/index.php/VNUAF/article/view/440. Acesso em: 19 sep. 2025.